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    Europium (II) sulfate EuSO4: Synthesis methods, crystal and electronic structure, luminescence properties / Y. G. Denisenko, A. E. Sedykh, A. S. Oreshonkov [et al.] // Eur. J. Inorg. Chem. - 2022. - Vol. 2022, Is. 12. - Ст. e202200043, DOI 10.1002/ejic.202200043. - Cited References: 69. - This research is partially supported by the state order of BINM SB RAS (project no. 0273-2021-0008) . - ISSN 1434-1948. - ISSN 1099-0682
   Перевод заглавия: Сульфат европия (II) EuSO4: методы синтеза, кристаллическая и электронная структура, люминесцентные свойства

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
DEPENDENT DECAY BEHAVIOR
ELECTROCHEMICAL REDUCTION
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
Europium -- Inorganic synthesis -- Luminescence -- Structure elucidation -- Sulfates
Аннотация: In the present work, we report on the synthesis of EuSO4 powders by two different methods using EuS as starting material. The compound EuSO4 contains divalent europium and crystallizes in the orthorhombic crystal system, space group Pnma with parameters close to SrSO4. The compound exhibits near isotropic thermal expansion over the temperature range 300–700 K. EuSO4 was examined by Raman, Fourier-transform infrared absorption and luminescence spectroscopy methods. EuSO4 is found to be an indirect bandgap material with a bandgap close to direct electronic transition. The emission lifetime of divalent europium d-f emission in EuSO4 shows an unusual behavior for stoichiometric compounds, as it shortens upon cooling from 1.11(1) μs at room temperature to 0.44(1) μs at 77 K.

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Держатели документа:
Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia.
Justus Liebig Univ Giessen, Inst Inorgan & Analyt Chem, D-35392 Giessen, Germany.
Tyumen State Univ, Dept Inorgan & Phys Chem, Tyumen 625003, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Mol Spect, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Engn & Construct, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.
Northern Trans Ural Agr Univ, Res Dept, Tyumen 625003, Russia.
SB RAS, Baikal Inst Nat Management, Ulan Ude 670047, Russia.
UB RAS, Lab Chem Rare Earth Cpds, Inst Solid State Chem, Ekaterinburg 620137, Russia.
Justus Liebig Univ Giessen, Ctr Mat Res LaMa, Heinrich Buff Ring 16, D-35392 Giessen, Germany.

Доп.точки доступа:
Denisenko, Y. G.; Sedykh, A. E.; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Azarapin, N. O.; Sal'nikova, E. I.; Chimitova, O. D.; Andreev, O. V.; Razumkova, I. A.; Muller-Buschbaum, K.; [0273-2021-0008]
}
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    Monoclinic SmAl3(BO3)4: synthesis, structural and spectroscopic properties / A. S. Oreshonkov, N. P. Shestakov, M. S. Molokeev [et al.] // Acta Crystallogr. B. - 2020. - Vol. 76. - P. 654-660, DOI 10.1107/S2052520620008781. - Cited References: 38. - Funding for this research was provided by: Russian Foundation for Basic Research (grant Nos. 18-03-00750, 18-05-00682 and 18-32-20011 to AO) . - ISSN 2052-5206
   Перевод заглавия: Моноклинный SmAl3(BO3)4: синтез, структура и спектроскопические свойства

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
Optical-properties
   Luminescence
   Spectra
   Crystals
   Sm
Кл.слова (ненормированные):
IR spectroscopy -- monoclinic structure -- luminescence -- Raman spectroscopy -- X-ray diffraction -- crystal structure
Аннотация: Single crystals of SmAl3(BO3)4 were synthesized by the group growth on seeds method. The crystal structure was solved using a single-crystal experiment and the purity of the bulk material was proved by the Rietveld method. This borate crystallizes in the monoclinic C2/c space group with unit-cell parameters a = 7.2386 (3), b = 9.3412 (5), c = 11.1013 (4) Å and β = 103.2240 (10)°. IR and Raman spectroscopic analyses confirmed the monoclinic structure of SmAl3(BO3)4. Under 532.1 nm excitation, luminescence spectra exhibit bands assignable to the transitions from 4G5/2 to 6H5/2, 6H7/2, 6H9/2 and 6H11/2. The similarity of the luminescence spectra of the trigonal and monoclinic polymorphs is explained by the minor role of Sm—O bond distortion and the primary role of rotational distortion of SmO6 octahedra. The smaller covalency of the Sm—O bond in alumoborates is deduced in comparison with galloborates. Calorimetric measurements did not reveal high-temperature structural phase transitions up to a temperature of 720 K.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Mol Spect, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Engn & Construct, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Sch Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Coherent Opt, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Radiospect & Spintron, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Automat & Electrometry, Novosibirsk 630090, Russia.
Fed Res Ctr KSC SB RAS, Dept Mol Elect, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.
Tyumen State Univ, Dept Inorgan & Phys Chem, Tyumen 625003, Russia.
Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia.

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Shestakov, N. P.; Шестаков, Николай Петрович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Adichtchev, S. V.; Pugachev, A. M.; Nemtsev, I. V.; Немцев, Иван Васильевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Denisenko, Y. G.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-03-00750, 18-05-00682, 18-32-20011]
}
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    A novel red-emitting La2CaHfO6:Mn4+ phosphor based on double perovskite structure for pc-WLEDs lighting / G. C. Xing [et al.] // CrystEngComm. - 2019. - Vol. 21, Is. 23. - P. 3605-3612, DOI 10.1039/c9ce00556k. - Cited References: 47. - This work is financially supported by the National Natural Science Foundation of China (NSFC No. 51672259). . - ISSN 1466-8033
   Перевод заглавия: Новый красный люминофор La2CaHfO6: Mn4+ на основе структуры двойного перовскита для светодиодных ламп pc-WLED

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
LUMINESCENCE PROPERTIES
   ELECTRONIC-STRUCTURE
   OPTICAL-PROPERTIES
   SITE
Аннотация: Non-rare earth doped oxides with red emission are one of the current research hotspots for achieving the warm white light range in the phosphor converted white light emitting diodes (pc-WLEDs) field. In the current work, a novel Mn4+-activated La2CaHfO6 red phosphor is reported for the first time and its crystal structure is analyzed by Rietveld refinement. The photoluminescent properties of La2CaHfO6:Mn4+ are investigated in detail with the help of diffuse refletance spectroscopy, photoluminescence spectroscopy, and temperature-dependent PL spectroscopy. Based on the diffuse refletance spectra, the calculated optical band gap for La2CaHfO6 is 4.9 eV, indicating that La2CaHfO6 could be a suitable host for activators' doping. Under 380 nm near-ultraviolet (n-UV) light excitation, the as-prepared La2CaHfO6:Mn4+ displays intense red emission centered at 693 nm. Through an accurate calculation of Dq/B (2.47) and nephelauxetic effect β1 (0.949), the origination of strong crystal field (CF) and deep-red emission is demonstrated. By combining the representative La2CaHfO6:0.002Mn4+, blue BAM:Eu2+, and green (Ba,Sr)2SiO4:Eu2+ phosphors with a 380 nm UV chip to fabricate the pc-WLEDs device, a white light is obtained with low correlated color temperature (CCT = 5165 K) and high color rendering index (Ra = 87.8), demonstrating that the as-prepared La2CaHfO6:Mn4+ phosphors can be used as red-emitting candidate in pc-WLEDs lighting.

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Держатели документа:
China Univ Geosci, Fac Mat Sci & Chem, Minist Educ, Engn Res Ctr Nanogeomat, 388 Lumo Rd, Wuhan 430074, Hubei, Peoples R China.
FRC KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Xing, Gongcheng; Feng, Yuxin; Gao, Zhiyu; Tao, Mengxuan; Wang, Hongquan; Wei, Y.i.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Li, Guogang
}
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    Giant hydrogen effect on the structure and physical properties of ZnO and Co-doped ZnO films fabricated by the RF magnetron sputtering in Ar + H2 atmosphere / I. S. Edelman [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 489. - Ст. 165461, DOI 10.1016/j.jmmm.2019.165461. - Cited References: 39. - The work is supported by the Russian Academy of Sciences in the frames of Project No 0356-2017-0030 and by the Ministry of Science and Technology of Taiwan MOST 106-2112-M-110-001. . - ISSN 0304-8853. - ISSN 1873-4766
   Перевод заглавия: Колоссальное влияние водорода на структуру и физические свойства пленок ZnO и ZnO допированных кобальтом, полученных методом высокочастотного магнетронного распыления в атмосфере аргона и водорода

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
MAGNETOOPTICAL PROPERTIES
OPTICAL-PROPERTIES
FERROMAGNETISM
Кл.слова (ненормированные):
ZnO films -- Co-doped ZnO films -- Films hydrogenation -- Magnetic circular -- dichroism -- Room temperature ferromagnetism
Аннотация: ZnO and Co-doped ZnO films were synthesized by the radio frequency magnetron sputtering in mixed atmosphere of Ar + 20% O2 and Ar + 20–50% H2. The morphology, chemical composition, crystal structure, optical transmission, electrical resistance, and magnetic circular dichroism of the films were investigated. It was established that the films thickness decreased several times when Ar was partly replaced by hydrogen in the sputtering chamber. At the same time, for the Co-doped ZnO films, the increase in the relative Co content with the increasing hydrogen concentration was observed. These phenomena are explained by the formation of gaseous ZnH2 because of the hydrogen reaction with the growing films under the conditions of the high substrate temperature (450 °C) and, respectively, the decrease in the Zn component in the films. The hydrogenated Co-doped ZnO films exhibit an increase in electric conductivity and ferromagnetic behavior at room temperature. The magnetic nature of the films is explained by a combination of the intrinsic ferromagnetism (due to the formation of the Co-H-Co complex) with the inclusion of metallic Co clusters.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan.
Natl Univ Kaohsiung, Dept Appl Phys, Kaohsiung 81148, Taiwan.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
ESRF, CS 40220, F-38043 Grenoble, France.

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Chou, Hsiung; Samoshkina, Yu. E.; Самошкина, Юлия Эрнестовна; Petrov, D. A.; Петров, Дмитрий Анатольевич; Lin, Hsien C.; Chan, Wen L.; Sun, Shih-Jye; Zharkov, S. M.; Жарков, Сергей Михайлович; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Platunov, M. S.; Платунов, Михаил Сергеевич; Rogalev, A.; Russian Academy of Sciences [0356-2017-0030]; Ministry of Science and Technology of Taiwan [MOST 106-2112-M-110-001]
}
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    Synthesis, structure and properties of K2(1-x)Rb2xAl2B2O7 and Cs1.39Tl0.61Al2B2O7 borates as the basis for preparing new oxide materials / V. G. Grossman [et al.] // Lett. Mater. - 2019. - Vol. 9, Is. 1. - P. 86-90 ; Письма о материалах, DOI 10.22226/2410-3535-2019-1-86-90. - Cited References:22. - The research was carried out within the state assignment of FASO of Russia (Theme No 0339-2016-0007). . - ISSN 2218-5046. - ISSN 2410-3535
   Перевод заглавия: Синтез, структура и свойства боратов K2(1-x)Rb2xAl2B2O7 и Cs1.39Tl0.61Al2B2O7 как основа получения новых оксидных материалов

РУБ Materials Science, Multidisciplinary
Рубрики:
OPTICAL-PROPERTIES
   CRYSTAL-STRUCTURE
   K2Al2B2O7
   GROWTH
Кл.слова (ненормированные):
borate -- solid-phase synthesis -- optical properties -- борат -- твердофазный синтез -- оптические свойства
Аннотация: With the development of technology, the need for highly efficient functional materials is steadily increasing. Currently, borates attract the attention of researchers, as they are promising nonlinear materials. Potassium rubidium aluminum borate based on potassium aluminum borate (trigonal syngony, space group P321, Z = 3) was obtained by solid-phase synthesis. The individuality and purity of the borates were confirmed by X-ray diffraction. Analysis of differential scanning calorimetry and thermogravimetric method for K2(1‑x)Rb2xAl2B2O7 (x = 0.1– 0.8) was performed in the temperature range of 25–1075°С. Potassium rubidium borates decompose in the temperature range of 900 –1000°C. Differential scanning calorimetry, dielectric loss tangent, and second-harmonic generation data revealed phase transitions for K0.6Rb1.4Al2B2O7. A significant SHG effect was found at room temperature for K0.6Rb1.4Al2B2O7 (Q = 70). Then the SHG effect increases to Q = 85 at a temperature of 645°C and remains constant with a further increase in temperature. The new triple borate Cs1.39Tl0.61Al2B2O7 was synthesized by the solid-phase synthesis, and its crystallographic parameters were obtained by the Rietveld method. This borate crystallizes in the monoclinic space group P21 / c with the unit cell parameters: Z = 2, a = 6.6669(3) Å, b = 7.2991(3) Å , c = 9.3589(4) Å , β =116.6795(18)°, V = 406.94(3) Å 3. The structure can be considered to be built up from the nearly planar [Al2B2O10] rings, which are composed of two AlO4 tetrahedra and two BO3 triangles, connected, alternately to each other by corner-sharing.
С развитием технологии потребность в высокоэффективных функциональных материалах растет. В настоящее время бораты привлекают внимание исследователей, поскольку они являются перспективными нелинейными материалами. Твердофазным синтезом получены бораты K2(1-x)Rb2xAl2B2O7 (x = 0.1–0.8) на основе калий-алюминиевого бората (тригональная сингония, пространственная группа P321, Z = 3). Индивидуальность и чистота боратов подтверждена рентгеновской дифракцией. Анализ дифференциально-сканирующей калориметрией и термогравиметрическим методом для K2(1-x)Rb2xAl2B2O7 (x = 0.1–0.8) был проведен в интервале температур 25–1075 ºС. Калий-рубидиевые бораты разлагаются в интервале температур 900–1000 °C. Дифференциальной сканирующей калориметрией, диэлектрическими измерениями и методом генерации второй оптической гармоники выявлены фазовые переходы для K0.6Rb1.4Al2B2O7. Значительный ГВГ-эффект был обнаружен при комнатной температуре для K0.6Rb1.4Al2B2O7 (Q = 70). Эффект генерации второй гармоники возрастает до Q = 85 при температуре 645 °C и остается постоянным при дальнейшем увеличении температуры. Новый тройной борат Cs1.39Tl0.61Al2B2O7 был синтезирован методом твердофазного синтеза, а его кристаллографические параметры были получены с помощью метода Ритвельда. Этот борат кристаллизуется в моноклинной пространственной группе P21/c с параметрами элементарной ячейки: Z = 2, a = 6.6669 (3) Å, b = 7.2991 (3) Å, c = 9.3589 (4) Å, β = 116.6795 (18)º, V = 406.94 (3) Å3. Структуру можно представить в виде почти плоских колец [Al2B2O10], которые состоят из двух тетраэдров AlO4 и двух BO3 треугольников, соединенных попеременно друг с другом посредством вершин.

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Держатели документа:
RAS, Baikal Inst Nat Management, Siberian Branch, 6 Sakhyanova St, Ulan Ude 670047, Russia.
Lomonosov Moscow State Univ, GSP 1,1-3 Leninskie Gory, Moscow 119991, Russia.
RAS, Siberian Branch, Kirensky Inst Phys, Fed Res Ctr KSC, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 82 Svobodniy Av, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Grossman, V. G.; Гроссман В. Г.; Bazarov, B. G.; Базаров Б. Г.; Stefanovich, S. Y.; Стефанович С. Ю.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bazarova, J. G.; Базарова Ж. Г.; [0339-2016-0007]

}
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    Agglomeration behavior of lipid-capped gold nanoparticles / R. Ranjan [et al.] // J. Nanopart. Res. - 2018. - Vol. 20, Is. 4. - Ст. 107, DOI 10.1007/s11051-018-4215-5. - Cited References:35. - The research was supported by the Russian Foundation for Basic Research [project no. 16-34-60100] and the state budget allocated to the fundamental research (project no. 0356-2017-0017). The authors thank Prof. Tatiana Volova, Prof. Evgenia Slyusareva, and Ms. Nina Slyusarenko of the Siberian Federal University for their assistance in the zeta potential and zeta-average analysis. . - ISSN 1388-0764. - ISSN 1572-896X
   Перевод заглавия: Характер агломирирования наночастиц золота, покрытых липидом

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials
Рубрики:
COLORIMETRIC SENSOR ARRAY
   OPTICAL-PROPERTIES
   AGGREGATION
   CANCER
Кл.слова (ненормированные):
Gold nanoparticles -- Ionic interference -- Agglomeration -- Stabilization -- Lipid capping -- Nanobiotechnology applications
Аннотация: The current investigation deciphers aggregation pattern of gold nanoparticles (AuNPs) and lipid-treated AuNPs when subjected to aqueous sodium chloride solution with increasing ionic strengths (100–400 nM). AuNPs were synthesized using 0.29 mM chloroauric acid and by varying the concentrations of trisodium citrate (AuNP1 1.55 mM, AuNP2 3.1 mM) and silver nitrate (AuNP3 5.3 μM, AuNP4 10.6 μM) with characteristic LSPR peaks in the range of 525–533 nm. TEM analysis revealed AuNPs to be predominantly faceted nanocrystals with the average size of AuNP1 to be 35 ± 5 nm, AuNP2 15 ± 5 nm, AuNP3 30 ± 5 nm, and AuNP4 30 ± 5 nm and the zeta-average for AuNPs were calculated to be 31.23, 63.80, 26.08, and 28 nm respectively. Induced aggregation was observed within 10 s in all synthesized AuNPs while lipid-treated AuNP2 (AuNP2-L) was found to withstand ionic interferences at all concentration levels. However, lipid-treated AuNPs synthesized using silver nitrate and 1.55 mM trisodium citrate (AuNP3, AuNP4) showed much lower stability. The zeta potential values of lipid-treated AuNPs (AuNP1-L-1x/200, − 17.93 ± 1.02 mV; AuNP2-L-1x/200, − 21.63 ± 0.70; AuNP3-L-1x/200, − 14.54 ± 0.90; AuNP3-L-1x/200 − 13.77 ± 0.83) justified these observations. To summarize, AuNP1 and AuNP2 treated with lipid mixture 1 equals or above 1x/200 or 1x/1000 respectively showed strong resistance against ionic interferences (up to 400 mM NaCl). Use of lipid mixture 1 for obtaining highly stable AuNPs also provided functional arms of various lengths which can be used for covalent coupling.

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Держатели документа:
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Dept Biophys, Lab Bioluminescent Biotechnol, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Electron Microscopy Lab, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Ranjan, Rajeev; Kirillova, Maria A.; Esimbekova, Elena N.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kratasyuk, Valentina A.; Russian Foundation for Basic Research [16-34-60100]; [0356-2017-0017]
}
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    Exploration of the electronic structure of monoclinic α-Eu2(MoO4)3: DFT-based study and X-ray photoelectron spectroscopy / A. H. Reshak [et al.] // J. Phys. Chem. C. - 2016. - Vol. 120, Is. 19. - P. 10559-10568, DOI 10.1021/acs.jpcc.6b01489. - Cited References:85. - This work was partly supported by the Russian Foundation for Basic Research (Grants 15-32-50586 and 15-52-53080). V.V.A. gratefully acknowledges the Ministry of Education and Science of the Russian Federation for the financial support. A.H.R. would like to acknowledge the CENTEM project, reg. no. CZ.1.05/2.1.00/03.0088, cofunded by the ERDF as part of the Ministry of Education, Youth and Sports OP RDI program and, in the follow-up sustainability stage, supported through CENTEM PLUS (LO1402) by financial means from the Ministry of Education, Youth and Sports under the "National Sustainability Programme I". Computational resources were provided by MetaCentrum (LM2010005) and CERIT-SC (CZ.1.05/3.2.00/08.0144) infrastructures. . - ISSN 1932-7447
   Перевод заглавия: Исследование электронной структуры моноклинного альфа-Eu2(MoO4)3: ТФП исследования и рентгеновская фотоэлектронная спектроскопия

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary
Рубрики:
Density-functional theory
   Solid-solution phosphors
   Luminescence properties
   Optical-properties
   Cleaved surface
   Core levels
   Vibrational properties
   Physical-properties
   Crystal-structure
   Single-crystals
Аннотация: The powder α-Eu2(MoO4)3 sample was prepared by the solid-state reaction method. The phase purity of the final powder product was verified by X-ray diffraction analysis. The constituent element core levels and valence band are measured by X-ray photoelectron spectroscopy as a function of Ar+ ion (2.5 keV, 7-8 μA/cm2) bombardment time. The formation of Mo5+ and Mo4+ states at high bombardment times was detected. The Eu-O and Mo-O bonding was considered in comparison with other Eu3+- and Mo6+-containing oxides using binding energy difference parameters. The transparency range obtained for the pure α-Eu2(MoO4)3 tablet is λ = 0.41-0.97 μm, as estimated at the transmission level of 5%. The short-wavelength cut edge in α-Eu2(MoO4)3 is governed by the direct allowed optical transitions within the band gap of Eg = 3.74 eV (300 K). The band structure of α-Eu2(MoO4)3 was calculated by ab initio methods and strongly different results were obtained for the spin up/down configurations. The Eu-4f states are located around 2.2 eV and -4.0 eV for spin up (↑) and the structures situated at around 6.5 and 5.5 eV for spin down (↓) configuration. The calculated spin magnetic moments are in excellent relation to the Slater-Pauling rule and within the Eu sphere the magnetic moment of 4f electrons is ∼5.99 μB. © 2016 American Chemical Society.

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Держатели документа:
Univ W Bohemia, New Technol Res Ctr, Univ 8, Plzen 30614, Czech Republic.
Univ Malaysia Perlis, Sch Mat Engn, Ctr Excellence Geopolymer & Green Technol, Kangar 01007, Perlis, Malaysia.
King Saud Univ, Coll Sci, Dept Phys & Astron, Riyadh 11451, Saudi Arabia.
Czech Tech Univ, Fac Mech Engn, Dept Instrumentat & Control Engn, Tech 4, Prague 16607 6, Czech Republic.
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
Novosibirsk State Univ, Lab Semicond & Dielectr Mat, Novosibirsk 630090, Russia.
SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia.
Buryat State Univ, Dept Chem, Ulan Ude 670000, Russia.
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
SB RAS, Boreskov Inst Catalysis, Novosibirsk 630090, Russia.
SB RAS, Inst Geol & Mineral, Lab High Pressure Minerals & Diamond Deposits, Novosibirsk 630090, Russia.

Доп.точки доступа:
Reshak, Ali H.; Alahmed, Z. A.; Bila, J.; Atuchin, V. V.; Bazarov, B. G.; Chimitova, O. D.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Prosvirin, Igor P.; Yelisseyev, Alexander P.; Russian Foundation for Basic Research [15-32-50586, 15-52-53080]; Ministry of Education and Science of the Russian Federation; CENTEM project - ERDF as part of the Ministry of Education, Youth and Sports OP RDI program [CZ.1.05/2.1.00/03.0088]; CENTEM PLUS - Ministry of Education, Youth and Sports [LO1402]
}
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Optimization of photothermal methods for laser hyperthermia of malignant cells using bioconjugates of gold nanoparticles / V. S. Gerasimov [et al.] // Colloid J. - 2016. - Vol. 78, Is. 4. - P. 435-442, DOI 10.1134/S1061933X16040050. - Cited References: 33. - This work was supported by the Ministry of Education and Science of the Russian Federation (contract no. 14.607.21.0104 RFMEFI60714X0104) (Section 3) and the State Assignment of the Ministry of Education and Science of the Russian Federation for Siberian Federal University (contract no. 1792) (Section 2). The numerical calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences. . - ISSN 1061-933X

РУБ Chemistry, Physical
Рубрики:
THERMAL THERAPY
   PLASMONIC NANOPARTICLES
   OPTICAL-PROPERTIES
   TUMOR-CELLS
   CARCINOMA
   CLUSTERS
   CANCER
Аннотация: Selective action of laser radiation on membranes of malignant cells has been studied in different regimes using conjugates of gold nanoparticles with oligonucleotides by the example of DNA aptamers. Under the conditions of a contact between a bioconjugate and a cell surface and the development of substantial and rapidly relaxing temperature gradients near a nanoparticle, the membranes of malignant cells alone are efficiently damaged due to the local hyperthermia of a cellular membrane. It has been shown that employment of pulsed instead of continuous wave laser radiation provides the localization of the damaging action, which does not involve healthy cells. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Оптимизация фототермических методов лазерной гипертермии злокачественных клеток с применением биоконъюгатов золотых наночастиц [Текст] / В. С. Герасимов [и др.] // Коллоид. журн. : Наука, 2016. - Т. 78 № 4. - С. 417–425

Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Reshetnev State Siberian State Aerospace University, pr. Gazety “Krasnoyarskii rabochii” 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; Semina, P. N.; Семина, Полина Николаевна
}
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    Weak localization and size effects in thin In2O3 films prepared by autowave oxidation / I. A. Tambasov [et al.] // Physica E. - 2016. - Vol. 84. - P. 162-167, DOI 10.1016/j.physe.2016.06.005. - Cited References:70. - This study was supported by the Russian Foundation for Basic Research (Grants # 16-32-00302 MOJI_a, # 15-02-00948-A, # 16-03-00069-A), by the Council for Grants of the President of the Russian Federation (SP-317.2015.1), and by the Program of Foundation for Promotion of Small Enterprises in Science and Technology (No. 6662 Gamma Y2015, 9607 Gamma Y/2015) ("UMNIK" Program). Electron microscopic studies were performed on the equipment of CCU KSC SB RAS. . - ISSN 1386-9477. - ISSN 1873-1759
   Перевод заглавия: Слабая локализация и размерные эффекты в тонких пленках In2O3 приготовленные автоволновым окислением

РУБ Nanoscience & Nanotechnology + Physics, Condensed Matter
Рубрики:
SOLID-STATE SYNTHESIS
   INDIUM TIN OXIDE
   DOPED ZNO FILMS
   OPTICAL-PROPERTIES
   MAGNETIC-FIELD
   NEGATIVE MAGNETORESISTANCE
   CARBON NANOTUBES
   TEMPERATURE
   SEMICONDUCTOR
   TRANSPORT
Кл.слова (ненормированные):
Thin indium oxide films -- Weak localization -- Electron-electron -- interaction -- Disordered semiconductors -- Nanostructured films -- Phase-coherent length
Аннотация: The negative magnetoresistance of thin In2O3 films, obtained by an autowave oxidation reaction, was detected within a temperature range of 4.2-80 K. The magnetoresistance was -1.35% at a temperature of 4.2 K and an external magnetic field of 1 T. A weak localization theory was used to explain the negative magnetoresistance and to determine the phase-coherence length in a temperature range of 4.2-80 K. The phase-coherence length was found to oscillate as the temperatures increased to around 30 K. From the maximum and minimum values of the oscillation of the phase-coherence length, it was suggested that the In2O3 film has two structure characteristic parameters. Transmission electron microscopy showed the structure of the thin In2O3 film to have structural features of a crystal phase- amorphous phase. It was found that the crystalline phase characteristic size was consistent with the maximum phase-coherence length and the amorphous phase characteristic size was consistent with the minimum phase-coherence length. It has been suggested that the temperature measurements of the magnetoresistance and the theory of weak localization can be used to evaluate the structural features of nanocomposite or nanostructured thin films. (C) 2016 Elsevier B.V. All rights reserved.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Akademgorodok 50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny Prospect 79, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk Worker 31, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Tarasov, A. S.; Тарасов, Антон Сергеевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Myagkov, V. G.; Мягков, Виктор Григорьевич; Bykova, L. E.; Быкова, Людмила Евгеньевна; Zhigalov, V. S.; Жигалов, Виктор Степанович; Matsynin, A. A.; Мацынин, Алексей Александрович; Tambasova, E. V.; Russian Foundation for Basic Research [16-32-00302 MOJI_a, 15-02-00948-A, 16-03-00069-A]; Council for Grants of the President of the Russian Federation [SP-317.2015.1]; Program of Foundation for Promotion of Small Enterprises in Science and Technology ("UMNIK" Program) [6662GammaY2015, 9607GammaY/2015]
}
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10.

    Belyaev, B. A.
    Resonances of electromagnetic oscillations in a spherical metal nanoparticle / B. A. Belyaev, V. V. Tyurnev // Microw. Opt. Technol. Lett. - 2016. - Vol. 58, Is. 8. - P. 1883-1886, DOI 10.1002/mop.29930. - Cited References:18 . - ISSN 0895-2477. - ISSN 1098-2760
   Перевод заглавия: Резонансы электромагнитных колебаний в сферической металлической наночастице

РУБ Engineering, Electrical & Electronic + Optics
Рубрики:
OPTICAL-PROPERTIES
LIGHT
Кл.слова (ненормированные):
plasmonics -- scattering -- particles -- resonators -- resonant modes
Аннотация: Electrodynamic analysis of plasma oscillations in a spherical metal nanoparticle is performed. It is shown that typical reduction in the frequency and quality factor of the resonances with increasing nanoparticle radius fades if the mode number grows. Depending on the particle radius, the resonant enhancement of the electric field might considerably either increase or decrease with increasing mode number. (C) 2016 Wiley Periodicals, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia.
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Беляев, Борис Афанасьевич
}
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11.

    Synthesis, structural and spectroscopic properties of acentric triple molybdate Cs2NaBi(MoO4)3 / A. A. Savina [et al.] // J. Solid State Chem. - 2015. - Vol. 225. - P. 53–58, DOI 10.1016/j.jssc.2014.11.023. - Cited References: 66. - The authors are grateful to Dr. K.M. Khal'baeva and Dr. Irina A. Gudkova for their assistance in preparing the compound and taking X-ray single-crystal diffraction data. This study is partly supported by the Russian Foundation for Basic Research (Grants 13-03-01020 and 14-03-00298). V.V.A., A.S.K. and A.S.O. gratefully acknowledge the Ministry of Education and Science of the Russian Federation for a partial financial support. . - ISSN 0022-4596. - ISSN 1095-726X
   Перевод заглавия: Синтез, структурные и спектроскопические свойства ацентричного тройного молибдата Cs2NaBi(MoO4)3

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
CRYSTAL-STRUCTURE
   SINGLE-CRYSTALS
   VIBRATIONAL PROPERTIES
   RAMAN-SPECTROSCOPY
   HYDROTHERMAL SYNTHESIS
   DIELECTRIC-PROPERTIES
   SELECTIVE OXIDATION;
   BISMUTH MOLYBDATES
   IONIC-CONDUCTIVITY
   OPTICAL-PROPERTIES
Кл.слова (ненормированные):
Triple molybdate -- Sodium -- Cesium -- Bismuth -- Crystal structure -- Raman spectroscopy -- CRYSTAL-STRUCTURE -- SINGLE-CRYSTALS -- VIBRATIONAL PROPERTIES -- RAMAN-SPECTROSCOPY -- HYDROTHERMAL SYNTHESIS -- DIELECTRIC-PROPERTIES -- SELECTIVE OXIDATION; -- BISMUTH MOLYBDATES -- IONIC-CONDUCTIVITY -- OPTICAL-PROPERTIES
Аннотация: New ternary molybdate Cs2NaBi(MoO4)3 is synthesized in the system Na2MoO4–Cs2MoO4–Bi2(MoO4)3. The structure of Cs2NaBi(MoO4)3 of a new type is determined in noncentrosymmetric space group R3c, a=10.6435(2), c=40.9524(7) Å, V=4017.71(13) Å3, Z=12 in anisotropic approximation for all atoms taking into account racemic twinning. The structure is completely ordered, Mo atoms are tetrahedrally coordinated, Bi(1) and Bi(2) atoms are in octahedra, and Na(1) and Na(2) atoms have a distorted trigonal prismatic coordination. The Cs(1) and Cs(2) atoms are in the framework cavities with coordination numbers 12 and 10, respectively. No phase transitions were found in Cs2NaBi(MoO4)3 up to the melting point at 826 K. The compound shows an SHG signal, I2w/I2w(SiO2)=5 estimated by the powder method. The vibrational properties are evaluated by Raman spectroscopy, and 26 narrow lines are measured.

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Держатели документа:
SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia.
Buryat State Univ, Dept Chem, Ulan Ude 670000, Russia.
SB RAS, Rzhanov Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia.
SB RAS, Nikolaev Inst Inorgan Chem, Lab Crystal Chem, Novosibirsk 630090, Russia.
Novosibirsk State Univ, Dept Nat Sci, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys, Lab Mol Spectroscopy, Krasnoyarsk 660036, Russia.
SB RAS, Nikolaev Inst Inorgan Chem, Lab Epitaxial Layers, Novosibirsk 630090, Russia.
Novosibirsk State Univ, Lab Res Methods Composit & Struct Funct Mat, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys, Lab Crystal Struct, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, Inst Automat & Elect, Lab Condenced Matter Spectroscopy, Novosibirsk 630090, Russia.

Доп.точки доступа:
Savina, A. A.; Atuchin, V. V.; Solodovnikov, S. F.; Solodovnikova, Z. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Maximovsky, E. A.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Pugachev, A. M.; Khaikina, E. G.; Russian Foundation for Basic Research [4828.2012.2, 12-02-31205]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [8379]
}
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12.

Geometric phase and ο-mode blueshift in a chiral anisotropic medium inside a Fabry-Pérot cavity / I. V. Timofeev [et al.] // Phys. Rev. E. - 2015. - Vol. 92, Is. 5. - Ст. 052504, DOI 10.1103/PhysRevE.92.052504. - Cited References: 92. - This work was supported in part by Russian Foundation for Basic Research Grants No. 14-02-31248 and No. 15-02-06924; Ministry of Education and Science of the Russian Federation under the Government program, Project No. 3.1276.2014/K; and the Ministry of Science and Technology of Taiwan under Grant No. NSC 103-2923-M-009-003-MY3 through an NSC–SB RAS joint project . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
NEMATIC LIQUID-CRYSTAL
   DIMENSIONAL PHOTONIC CRYSTAL
   OPTICAL-PROPERTIES
   ELECTROMAGNETIC PROPAGATION
   DISPLAYS
   SYSTEMS
   FILTER
   LIGHT
   CELL
   FORMULATION
Аннотация: Anomalous spectral shift of transmission peaks is observed in a Fabry-Pérot cavity filled with a chiral anisotropic medium. The effective refractive index value resides out of the interval between the ordinary and the extraordinary refractive indices. The spectral shift is explained by contribution of a geometric phase. The problem is solved analytically using the approximate Jones matrix method, numerically using the accurate Berreman method, and geometrically using the generalized Mauguin-Poincaré rolling cone method. The o-mode blueshift is measured for a 4-methoxybenzylidene-4′-n-butylaniline twisted-nematic layer inside the Fabry-Pérot cavity. The twist is electrically induced due to the homeoplanar-twisted configuration transition in an ionic-surfactant-doped liquid crystal layer. Experimental evidence confirms the validity of the theoretical model. © 2015 American Physical Society.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Guiren District, Tainan, Taiwan

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
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13.

    Pressure-stimulated synthesis and luminescence properties of microcrystalline (Lu,Y)3Al5O12:Ce3+ garnet phosphors / V. V. Atuchin [et al.] // ACS Appl. Mater. Interfaces. - 2015. - Vol. 7, Is. 47. - P. 26235-26243, DOI 10.1021/acsami.5b08411. - Cited References: 75. - This work was partly supported by the National Natural Science Foundations of China (Grant Nos. 51272242 and 51511130035) and the Russian Foundation for Basic Research (Grant No. 15-52-53080 GFEN_a). V.V.A. was partly supported by the Ministry of Education and Science of the Russian Federation . - ISSN 1944-8244
   Перевод заглавия: Синтез стимулированный давлением и люминесцентные свойства микрокристаллических гранатов (Lu,Y)3Al5O12:Ce3+

РУБ Nanoscience & Nanotechnology + Materials Science, Multidisciplinary
Рубрики:
LASER MASS-SPECTROMETRY
   LIGHT-EMITTING-DIODES
   WHITE-LIGHT
   SINGLE-CRYSTALS
   OPTICAL-PROPERTIES
   ELECTRONIC-STRUCTURE
   VIBRATIONAL PROPERTIES
   PHASE-TRANSITIONS
   PARTICLE-SIZE
   GROWTH
Кл.слова (ненормированные):
synthesis -- pressure -- garnet -- structure -- luminescence -- phosphor
Аннотация: The Lu2.98Ce0.01Y0.01Al5O12 and Y2.99Ce0.01Al5O12 phosphors were synthesized by solid state reaction at temperature 1623 K and pressure 1.5 × 107 Pa in (95% N2 + 5% H2) atmosphere. Under the conditions, the compounds crystallize in the form of isolated euhedral partly faceted microcrystals ∼19 μm in size. The crystal structures of the Lu2.98Ce0.01Y0.01Al5O12 and Y2.99Ce0.01Al5O12 garnets have been obtained by Rietveld analysis. The photoluminescence (PL) and X-ray excited luminescence (XL) spectra obtained at room temperature indicate broad asymmetric bands with maxima near 519 and 540 nm for Y2.99Ce0.01Al5O12 and Lu2.98Ce0.01Y0.01Al5O12, respectively. The light source was fabricated using the powder Lu2.98Ce0.01Y0.01Al5O12 phosphor and commercial blue-emitting n-UV LED chips (λex = 450 nm). It is found that the CIE chromaticity coordinates are (x = 0.388, y = 0.563) with the warm white light emission correlated color temperature (CCT) of 6400 K and good luminous efficiency of 110 lm/W. © 2015 American Chemical Society.

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Держатели документа:
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation
Analytical Laboratory, Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russian Federation
Department of Applied Physics, Novosibirsk State University, Novosibirsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Laboratory of High Pressure Minerals and Diamond Deposits, Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China

Доп.точки доступа:
Atuchin, V. V.; Beisel, N. F.; Galashov, E. N.; Mandrik, E. M.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Yelisseyev, A. P.; Yusuf, A. A.; Xia, Z.
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14.

Effect of local environment in resonant domains of polydisperse plasmonic nanoparticle aggregates on optodynamic processes in pulsed laser fields / A. E. Ershov [et al.] // Chin. Phys. B. - 2015. - Vol. 24, Is. 4. - Ст. 047804, DOI 10.1088/1674-1056/24/4/047804. - Cited References:25. - Project supported by the Russian Academy of Sciences (Grant Nos. 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), and 3-9-5). . - ISSN 1674. - ISSN 1741-4199. -

РУБ Physics, Multidisciplinary
Рубрики:
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.

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Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), 3-9-5]
}
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15.

    Electronic structure of β-RbNd(MoO4)2 by XPS and XES / V. V. Atuchin [et al.] // J. Phys. Chem. Solids. - 2015. - Vol. 77. - P. 101-108, DOI 10.1016/j.jpcs.2014.09.012. - Cited References: 52. - This study was partially supported by the Ministry of Education and Science of the Russian Federation and RFBR Grant 12-02-90806-mol_rf_nr. . - ISSN 0022-3697
   Перевод заглавия: Электронная структура b-RbNd(MoO4)2, исследованная при помощи РФЭС и РСМА

РУБ Chemistry, Multidisciplinary + Physics, Condensed Matter
Рубрики:
RAY-EMISSION-SPECTROSCOPY
   CRYSTAL-STRUCTURE
   PHOTOELECTRON-SPECTROSCOPY
   LUMINESCENCE PROPERTIES
   VIBRATIONAL PROPERTIES
   PHOTOEMISSION SPECTRA
   OPTICAL-PROPERTIES
   TERNARY MOLYBDATE
   AB-INITIO
   SYSTEM
Кл.слова (ненормированные):
Inorganic compounds -- Chemical synthesis -- Photoelectron spectroscopy -- X-ray diffraction -- Electronic structure
Аннотация: β-RbNd(MoO4)2 microplates have been prepared by the multistage solid state synthesis method. The phase composition and micromorphology of the final product have been evaluated by XRD and SEM methods. The electronic structure of β-RbNd(MoO4)2 molybdate has been studied employing the X-ray photoelectron spectroscopy (XPS) and X-ray emission spectroscopy (XES). For the molybdate, the XPS core-level and valence-band spectra, as well as XES bands representing energy distribution of the Mo 4d- and O 2p-like states, have been measured. It has been established that the O 2p-like states contribute mainly to the upper portion of the valence band with also significant contributions throughout the whole valence-band region. The Mo 4d-like states contribute mainly to a lower valence band portion

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Держатели документа:
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia
Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, UA-03142 Kiev, Ukraine
SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
SB RAS, Inst Semicond Phys, Lab Nanodiagnost & Nanolithog, Novosibirsk 630090, Russia

Доп.точки доступа:
Atuchin, V. V.; Khyzhun, O. Y.; Chimitova, O. D.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Gavrilova, T. A.; Bazarov, B. G.; Bazarova, J. G.; Ministry of Education and Science of the Russian Federation; RFBR [12-02-90806-mol_rf_nr]
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16.

Magneto-optical activity of f–f transitions in ErFe3(BO3)4 and ErAl3(BO3)4 single crystals / A. V. Malakhovskii [et al.] // J. Magn. Magn. Mater. - 2015. - Vol. 384. - P. 255-265, DOI 10.1016/j.jmmm.2015.02.051. - Cited References: 44. - The work was supported by the Russian Foundation for Basic Researches Grant 12-02-00026 and by the President of Russia Grant no. Nsh-2886.2014.2. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
CIRCULAR-DICHROISM SPECTRA
   GREEN UP-CONVERSION
   SPECTROSCOPIC PROPERTIES
   OPTICAL-PROPERTIES
   LASER
   Er3+
   ABSORPTION
   GROWTH
   IONS
   GdFe3(BO3)4
Кл.слова (ненормированные):
Magnetic circular dichroism -- Natural circular dichroism -- Rare earth ferroborates -- Rare earth alumoborates -- Electronic structure
Аннотация: Absorption, magnetic circular dichroism and natural circular dichroism spectra of ErFe3(BO3)4 and ErAl3(BO3)4 single crystals were measured as a function of temperature in the range of 90–293 K. It was found out that magneto-optical activity of the same f–f transitions in the studied crystals substantially differed and their temperature dependences did not follow the Curie–Weiss law in contrast to the properties of allowed transitions. The observed phenomena were accounted for by the nature of f–f transitions allowance. Properties of the transition 4I15/2→4S3/2 were studied in detail. In particular, the Zeeman splitting and the natural optical activity of the absorption lines composed of the transition were determined. The vibronic line with the very large natural optical activity was revealed and identified. Two nonequivalent Er3+ ion positions with the opposite chirality were found out in one of the excited states. Polarization properties of the 4I15/2→4S3/2 transition in the ErFe3(BO3)4 crystal have shown that the local symmetry of Er3+ ion in this crystal in the range of 90–293 K is lower than the D3 one. From the heat capacity measurements it was revealed, that the first order structural phase transition to lower symmetry occurred in ErFe3(BO3)4 at 433–439 K.
Поглощение, магнитный циркулярный дихроизм и спектры природного кругового дихроизма монокристаллов ErFe3(BO3)4 и ErAl3(BO3)4 были измерены в зависимости от температуры в диапазоне 90-293 К. Было обнаружено, что по магнитооптической активности одни и те жеF-F переходы в исследованных кристаллах существенно отличаются и их температурные зависимости не следовать закону Кюри-Вейсса в отличие от свойств разрешенных переходов. Наблюдаемые явления были учтены по характеру F-Fпереходов. Свойства перехода 4I15 / 2 → 4S3 / 2 были детально изучены. В частности, расщепление Зеемана и явление естественной оптической активности линий поглощения, состоящих в переходе были полны решимости. Вибронная линия очень большой естественной оптической активности выявлена и идентифицирована. Две неэквивалентных позиций ионовEr3 + с противоположной хиральности были найдены в одном из возбужденных состояний. Поляризационные свойства 4I15 / 2 → 4S3 / 2 перехода в ErFe3(BO3)4 кристалла показали, что локальная симметрия ионов Er3 + в этом кристалле в диапазоне 90-293 К ниже, чем D3. Из измерений теплоемкости Было обнаружено, что структурный фазовый переход первого типа к более низкой симметрии произошел в ErFe3(BO3) 4 при 433-439 К. Ключевые слова: Магнитный круговой дихроизм; Природные круговой дихроизм; Редкоземельные ферроборатов; Редкоземельныеalumoborates; Электронная структура; 44 источника.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Sokolov, V. V.; Соколов В. В.; Kutsak, T. V.; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Russian Foundation for Basic Researches [12-02-00026]; President of Russia Grant [Nsh-2886.2014.2]
}
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17.

Pavlovskii, M. S.
Calculation of lattice dynamics, elastic and dielectric properties of γ-BiB3O6 and δ-BiB3O6 / M. S. Pavlovskii, A. S. Shinkorenko, V. I. Zinenko // Phys. Solid State. - 2015. - Vol. 57, Is. 4. - P. 675-682, DOI 10.1134/S1063783415040241. - Cited References:14. - This study was supported by the Council on Grants from the President of the Russian Federation for Support of the "Leading Scientific Schools" (grant no. NSh-924.2014.2). . - ISSN 1063. - ISSN 1090-6460. -

РУБ Physics, Condensed Matter
Рубрики:
BISMUTH BORATE BiB3O6
   OPTICAL-PROPERTIES
   CRYSTAL
   RAMAN
Аннотация: The crystal lattice vibration frequencies, densities of phonon states, elastic moduli, and high-frequency permittivities have been calculated in terms of the density functional theory method for two polymorphs γ-BiB3O6 and δ-BiB3O6. Based on the calculated densities of phonon states, the temperature dependences of the free energies of two considered bismuth triborate modifications have been constructed, and the temperature of the phase transition between these modifications has been determined (1100 K). The structure of a possible nonpolar praphase of δ-BiB3O6 has been proposed. The polarization of δ-BiB3O6 has been estimated as 131 μC/cm2.

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Публикация на русском языке Павловский, Максим Сергеевич. Расчет динамики решетки, упругие и диэлектрические свойства γ-BiB3O6 и δ-BiB3O6 [Текст] / М. С. Павловский, А. С. Шинкоренко, В. И. Зиненко // Физ. тверд. тела : Санкт-Петербургская издательская фирма "Наука" РАН, 2015. - Т. 57 Вып. 4. - С. 661-667

Доп.точки доступа:
Shinkorenko, A. S.; Шинкоренко, Алексей Сергеевич; Zinenko, V. I.; Зиненко, Виктор Иванович; Павловский, Максим Сергеевич; Council on Grants from the President of the Russian Federation for Support of the "Leading Scientific Schools" [NSh-924.2014.2]
}
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18.

Synthesis and luminescence properties of Li2O–Y2O3–TeO2:Eu3+ tellurite glass / V. V. Atuchin [et al.] // Mater. Chem. Phys. - 2014. - Vol. 147, Is. 3. - P. 1191-1194, DOI 10.1016/j.matchemphys.2014.07.003. - Cited References: 26. - This study is partly supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0254-0584. - ISSN 1879-3312

РУБ Materials Science, Multidisciplinary
Рубрики:
LIGHT-EMITTING-DIODES
   SPECTROSCOPIC PROPERTIES
   OPTICAL-PROPERTIES
   ENERGY-TRANSFER
   CERAMICS
   Eu3+
   PHOTOLUMINESCENCE
   TEMPERATURE
   EMISSION
   PHOSPHOR
Кл.слова (ненормированные):
Glasses -- Heat treatment -- Photoluminescence spectroscopy -- Optical properties
Аннотация: The Eu3+-doped red-orange emitting phosphor of tellurite glass 0.25Li2O–0.20Y2O3–0.5TeO2–0.05Eu2O3 has been synthesized by the melt quenching method. The amorphous nature of the glass has been verified by XRD measurements. The photoluminescence excitation and emission spectra, the luminescence decay curves have been investigated for the composition. The phosphor can be efficiently excited by the near UV light to realize the intense narrow red emission line (611 nm) corresponding to forced electric dipole transition 5D0 → 7F2 of Eu3+ ions. The Li2O–Y2O3–TeO2:Eu3+glass phosphor is a potential red-orange emitting candidate for the application in WLEDs.

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Держатели документа:
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia
SB RAS, Inst Geol & Mineral, Lab High Pressure Minerals & Diamond Deposits, Novosibirsk 630090, Russia
Novosibirsk State Univ, Dept Appl Phys, Novosibirsk 630090, Russia
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Atuchin, V. V.; Yelisseyev, A. P.; Galashov, E. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ministry of Education and Science of the Russian Federation
}
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19.

Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles / A. E. Ershov [et al.] // Appl. Phys. B. - 2014. - Vol. 115, Is. 4. - P. 547-560, DOI 10.1007/s00340-013-5636-6. - Cited References: 48. - Authors are thankful to Prof. V. A. Markel (University of Pennsylvania) for supplying program codes for realization of the coupled dipole method for polydisperse metal nanoparticle aggregates. This research was supported by the Russian Academy of Sciences under the Grants 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101); Ministry of Education and Science of Russian Federation under Contract 14.B37.21.0457. . - ISSN 0946-2171. - ISSN 1432-0649

РУБ Optics + Physics, Applied
Рубрики:
SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   NOBLE-METALS
   SILVER
   ELECTRON
   LIQUID
   GENERATION
   DYNAMICS
   FORCES
   GOLD
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.

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Держатели документа:
Russian Acad Sci, LV Kirenski Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
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20.

High-temperature heat capacity of YbAl3(BO3)4 / V. M. Denisov [et al.] // Russ. J. Phys. Chem. A. - 2014. - Vol. 88, Is. 8. - P. 1436-1437, DOI 10.1134/S0036024414080093. - Cited References: 14 . - ISSN 0036-0244. - ISSN 1531-863X

РУБ Chemistry, Physical
Рубрики:
SINGLE-CRYSTALS
   OPTICAL-PROPERTIES
   LASER CRYSTAL
   YAl3(BO3)4
   GROWTH
Кл.слова (ненормированные):
ytterbium aluminum borate -- high-temperature heat capacity -- thermodynamic properties
Аннотация: The isobaric heat capacity Cp(T) of YbAl3(BO3)4 grown by spontaneous crystallization from solution (100 − n) wt % (Bi2Mo3O12 + 2.5% B2O3 + 0.75% Li2MoO4) + n wt % YbAl3(BO3)4 is studied experimentally in the region of 344–1016 K. It is established that there are no extrema on the Cp(T) dependence, and the obtained data can be described using the Berman-Brown polynomial. The temperature variations of enthalpy and entropy are calculated from the Cp(T) dependence.

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Публикация на русском языке Высокотемпературная теплоемкость YbAl3(BO3)4 [Текст] / В. М. Денисов [и др.] // Журн. физ. химии : Наука, 2014. - Т. 88 № 7-8. - С. 1264-1265

Держатели документа:
Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Krasnoyarsk 660025, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Denisov, V. M.; Denisova, L. T.; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Patrin, G. S.; Патрин, Геннадий Семёнович; Volkov, N. V.; Волков, Никита Валентинович; Chumilina, L. G.
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