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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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Voltage-induced defect mode coupling in a one-dimensional photonic crystal with a twisted-nematic defect layer / I. V. Timofeev [et al.] // Phys. Rev. E. - 2012. - Vol. 85, Is. 1. - Ст. 11705, DOI 10.1103/PhysRevE.85.011705. - Cited References: 39. - This work was supported in part by DSP Grant No. 2.1.1/3455; RAS Grants No. 3.9.1 and No. 21.1, SB RAS Grants No. 5 and No. 144, and by the National Science Council of Taiwan under Grant No. NSC 98-2923-M-033-001-MY3. . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
LIQUID-CRYSTAL
   REFLECTION SPECTRUM
   OPTICAL-PROPERTIES
   ANISOTROPIC MEDIA
   ELECTRIC-FIELD
   EIGENVALUES
   ORIENTATION
Аннотация: Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal. Their frequency shift and interference under applied voltage are studied both experimentally and theoretically. We deal with the case where the defect layer thickness is much larger than the wavelength (i.e., the Mauguin condition). It is shown theoretically that the defect modes could have a complex structure with elliptic polarization. Two series of polarized modes are coupled with each other and exhibit an avoided crossing phenomenon in the case of opposite parity.

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Держатели документа:
[Timofeev, Ivan V.
Gunyakov, V. A.
Myslivets, Sergey A.
Arkhipkin, V. G.
Zyryanov, Victor Ya] Russian Acad Sci, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Timofeev, Ivan V.
Gunyakov, Vladimir A.
Arkhipkin, V/ G.
Vetrov, Stepan Ya] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Lin, Yu-Ting] Chung Yuan Christian Univ, Master Program Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Zyryanov, Victor Ya] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Lin, Y. T.; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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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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    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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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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Spectroscopic studies of fractal aggregates of silver nanospheres undergoing local restructuring / S. V. Karpov [et al.] // J. Chem. Phys. - 2006. - Vol. 125, Is. 11. - Ст. 111101, DOI 10.1063/1.2229202. - Cited References: 30 . - ISSN 0021-9606

РУБ Physics, Atomic, Molecular & Chemical
Рубрики:
ENHANCED RAMAN-SCATTERING
   SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   DISORDERED CLUSTERS
   NONLINEAR OPTICS
   LOCALIZATION
   NANOPARTICLES
   EIGENMODES
   BOUNDS
Кл.слова (ненормированные):
Large-scale fractal geometry -- Nonlinear optical responses -- Restructuring -- Silver nanospheres -- Aggregates -- Colloids -- Electromagnetic fields -- Fractals -- Nonlinear optics -- Sampling -- Spectroscopic analysis -- Silver
Аннотация: We present an experimental spectroscopic study of large random colloidal aggregates of silver nanoparticles undergoing local restructuring. We argue that such well-known phenomena as strong fluctuation of local electromagnetic fields, appearance of "hot spots" and enhancement of nonlinear optical responses depend on the local structure on the scales of several nanosphere diameters, rather than the large-scale fractal geometry of the sample. (c) 2006 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
ИФ СО РАН
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Department of Physics and Engineering, Krasnoyarsk State Technical University, Krasnoyarsk 660028, Russian Federation
Departments of Radiology and Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, United States

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович; Markel, V. A.
}
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    Spectroscopic properties of HoAl3(BO3)4 single crystal / D. A. Ikonnikov [et al.] // Opt. Mater. - 2014. - Vol. 37. - P. 257–261, DOI 10.1016/j.optmat.2014.05.036. - Cited References: 30. - The work was supported by Grant of the Ministry of Education and Science of the Russian Federation for Siberian Federal University, the Russian Foundation for Basic Research Grants 12-02-00026, 14-02-00219 and 13-02-00825, by the Russian President Grant SS-2886.2014.2, and by SB RAS Project No. 43. . - ISSN 0925. - ISSN 1873-1252
   Перевод заглавия: Спектроскопические свойства монокристалла HoAl3(BO3)4

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
RARE-EARTH IONS
   OPTICAL-PROPERTIES
   Ho3+ IONS
   ABSORPTION
   INTENSITIES
   EMISSION
   GLASSES
   SPECTRA
   LUMINESCENCE
   PARAMETERS
Кл.слова (ненормированные):
Absorption -- Luminescence -- Holmium -- Huntite -- Judd-Ofelt
Аннотация: The Judd–Ofelt theory has been applied to analyze absorption spectra of Ho3+ ion in HoAl3(BO3)4 measured in spectral range 300–700 nm at room temperature. The Judd–Ofelt spectroscopic parameters have been determined as: Ω2 = 18.87 x 10 -20 cm2, Ω4 = 17.04 x 10 -20 cm2, Ω6 = 9.21 x 10 -20 cm2. These parameters have been used to calculate radiative lifetimes and branching ratios of the luminescence manifolds. Three luminescent bands were found in the spectral range 450–700 nm ascribed to transitions from the 5F5, (5F4, 5S2) and 3K8 states to the ground state 5I8. Experimental intensities of these luminescence transitions were compared with those calculated by using Judd–Ofelt theory and the system of kinetic equations for populations of starting luminescing states. Probabilities of radiativeless transitions were evaluated from this comparison.

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

Доп.точки доступа:
Ikonnikov, D. A.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Temerov, V. L.; Темеров, Владислав Леонидович; Krylov, A. S.; Крылов, Александр Сергеевич; Bovina, A. F.; Бовина, Ася Федоровна; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Ministry of Education and Science of the Russian Federation for Siberian Federal University; Russian Foundation for Basic Research Grants [12-02-00026, 14-02-00219, 13-02-00825]; Russian President Grant [SS-2886.2014.2]; SB RAS Project [43]
}
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Spectral properties of a two-dimensional resonant metal-dielectric photonic crystal / S. Y. Vetrov [et al.] // Opt. Spectrosc. - 2012. - Vol. 112, Is. 4. - P. 585-593, DOI 10.1134/S0030400X12030204. - Cited References: 17. - This work was supported by grants RNP no. 2.1.1/3455, OFN RAN no. 3.9.1, Presidium of the Russian Academy of Sciences no. 21.1, and "Integration" SO RAN nos. 5 and 144. . - ISSN 0030-400X

РУБ Optics + Spectroscopy
Рубрики:
HETEROGENEOUS MEDIA
OPTICAL-PROPERTIES
Аннотация: We have studied the transmission spectra of resonant two-dimensional photonic crystals of two types, one of which consists of nanocomposite cylinders that form a square lattice in vacuum and the other of which consists of cylindrical holes that form a square lattice in nanocomposite matrix. The nanocomposite consists of metallic nanospheres that are dispersed in a transparent matrix and is characterized by an effective resonant dielectric permittivity. We show that, depending on the position of the resonant frequency of the nanocomposite with respect to the boundaries of the band gap, there arises either an additional transmission band in the transmission spectrum in the band gap or an additional band gap in the continuous spectrum of the photonic crystal. As the structural and geometric parameters of the system change, both the additional transmission band and the additional band gap are considerably modified. We analyze particular features of the spatial distribution of the electromagnetic field intensity in crystals. The considered effects can be used to extend the possibilities of creating new photonic crystals with specified properties.

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Публикация на русском языке Спектральные свойства двумерного металл-диэлектрического резонансного фотонного кристалла [Текст] / С. Я. Ветров [и др.] // Оптика и спектроскопия : Наука, 2012. - Т. 112 № 4. - С. 638–646

Держатели документа:
[Vetrov, S. Ya
Rudakova, N. V.
Timofeev, V. P.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vetrov, S. Y.; Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Timofeev, V. P.
}
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Vetrov, S. Ya.
Spectral properties of a one-dimensional photonic crystal with a resonant defect nanocomposite layer / S. Y. Vetrov, A. Y. Avdeeva, I. V. Timofeev // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 5. - P. 755-761, DOI 10.1134/S1063776111140093. - Cited References: 33. - This work was supported by projects nos. NSh-7810.2010.3, RNP.2.1.1.3455, 27.1 and 3.9.1 of the Russian Academy of Sciences, 5 and 144 of the Siberian Branch of the Russian Academy of Sciences, and State contract no. 02.740.11.0220 according to the program Research and Scientific-Pedagogical Brainpower of Innovated Russia. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
OPTICAL-PROPERTIES
   SEMICONDUCTOR MICROCAVITIES
   2ND-HARMONIC GENERATION
   HETEROGENEOUS MEDIA
   MODE
   ENHANCEMENT
   DISPERSION
   SYSTEM
Аннотация: The spectral properties of a one-dimensional photonic crystal with a defect nanocomposite layer that consists of metallic nanoballs distributed in a transparent matrix and is characterized by an effective resonance permittivity are studied. The problem of calculating the transmission, reflection, and absorption spectra of p-polarized waves in such structures is solved for oblique incidence of light, and the spectral manifestation of defect-mode splitting as a function of the volume fraction of nanoballs and the structural parameters is studied. The splitting is found to depend substantially on the nanoball concentration in the defect, the defect layer thickness, and the angle of incidence. The angle of incidence is found at which the resonance frequency of the nanocomposite is located near the edge of the bandgap or falls in the frequency region of a continuous spectrum. The resonance situation appearing in this case results in an additional transmission band or an additional bandgap in the transmission spectrum.

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Держатели документа:
[Vetrov, S. Ya.
Avdeeva, A. Yu.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Avdeeva, A. Y.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич
}
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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.

Quantum dots embedded into silicon nanowires effectively partition electron confinement / P. V. Avramov [et al.] // J. Appl. Phys. - 2008. - Vol. 104, Is. 5. - Ст. 54305, DOI 10.1063/1.2973464. - Cited References: 22. - This work was, in part, partially supported by a Core Research for Evolutional Science and Technology (CREST) grant in the area of high performance computing for multi-scale and multiphysics phenomena from the Japan Science and Technology Agency (JST) as well as by the Russian Fund of Basic Researches (Grant No. 05-02-17443) (L.A.C.). One of the authors (P.V.A.) acknowledges the encouragement of Dr. Keiji Morokuma, Research Leader at Fukui Institute. The geometry of all presented structures was visualized by ChemCraft software. SUP23/SUP L.A.C. acknowledges I. V. Stankevich for help and fruitful discussions. P.B.S. is grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for access to a cluster computer for quantum-chemical calculations. . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
OPTICAL-PROPERTIES
   POROUS SILICON
   WIRES
   PREDICTION
   GROWTH
Кл.слова (ненормированные):
Electric currents -- Electric wire -- Electronic states -- Electronic structure -- Nanostructured materials -- Nanostructures -- Nanowires -- Nonmetals -- Optical waveguides -- Plasma confinement -- Quantum confinement -- Quantum electronics -- Semiconducting silicon compounds -- Silicon -- electronic state -- Band gaps -- Electron confinements -- Electronic-structure calculations -- Embedded structures -- Quantum confinement effect -- Quantum dots -- Semi-empirical methods -- Silicon nanowires -- Silicon quantum dots -- Semiconductor quantum dots
Аннотация: Motivated by the experimental discovery of branched silicon nanowires, we performed theoretical electronic structure calculations of icosahedral silicon quantum dots embedded into pentagonal silicon nanowires. Using the semiempirical method, we studied the quantum confinement effect in the fully optimized embedded structures. It was found that (a) the band gaps of the embedded structures are closely related to the linear sizes of the longest constituting part rather than to the total linear dimension and (b) the discovered atypical quantum confinement with a plateau and a maximum can be attributed to the substantial interactions of near Fermi level electronic states of the quantum dots and nanowire segments. (c) 2008 American Institute of Physics.

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Держатели документа:
[Avramov, Pavel V.] Kyoto Univ, Fukui Inst Fundamental Chem, Kyoto 6068103, Japan
[Fedorov, Dmitri G.] Natl Inst Adv Ind Sci & Technol, Res Inst Computat Sci, Tsukuba, Ibaraki 3058568, Japan
[Sorokin, Pavel B.
Ovchinnikov, Sergei G.] LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
[Sorokin, Pavel B.
Ovchinnikov, Sergei G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Sorokin, Pavel B.
Chernozatonskii, Leonid A.] RAS, NM Emanuel Inst Biochem Phys, Moscow 119334, Russia
ИФ СО РАН
Fukui Institute for Fundamental Chemistry, Kyoto University, 34-3 Takano Nishihiraki, Sakyo, Kyoto 606-8103, Japan
Research Institute for Computational Science, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8568, Japan
L.V. Kirensky Institute of Physics, SB, RAS, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodny Av., 660041 Krasnoyarsk, Russian Federation
N.M. Emanuel Institute of Biochemical Physics, RAS, 119334 Moscow, Russian Federation

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Fedorov, D. G.; Sorokin, P. B.; Chernozatonskii, L. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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12.

    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.
Свободных экз. нет}
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13.

Vetrov, S. Ya.
Photonic defect modes in a cholesteric liquid crystal with a resonant nanocomposite layer and a twist defect / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // Phys. Rev. E. - 2014. - Vol. 90, Is. 3. - Ст. 32505, DOI 10.1103/PhysRevE.90.032505. - Cited References: 36. - This work was partially supported by Grants No. 43, No. 101, and No. 24.29 of SB RAS; Russian Fund of Fundamental Research Grant No. 14-02-31248; Russian Ministry of Education and Science under the Government program, Project No. 3.1276.2014/K; Grant of the President of the Russian Federation Grant No. MK-250.2013.2, and the NSCT-SB RAS joint project. . - ISSN 1539-3755. - ISSN 1550-2376

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
OPTICAL-PROPERTIES
   GENERATION
   MEDIA
   FILMS
Аннотация: We have studied spectral properties of a cholesteric liquid crystal with a combined defect consisting of a nanocomposite layer and a twist. The nanocomposite layer is made of metallic nanoballs dispersed in a transparent matrix and featuring effective resonant permittivity. A solution has been found for the transmission spectrum of circularly polarized waves in the structure. We have analyzed spectral splitting of the defect mode in the band gap of the cholesteric when its frequency coincides with the nanocomposite resonant frequency. Defect modes have characteristics strongly dependent on the magnitude and the sign of the phase difference of the cholesteric helix on both sides of the defect layer. It has been found that the band gap width and the position and localization degree of defect modes can be effectively controlled by external fields applied to the cholesteric.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia
Krasnoyarsk State Med Univ, Krasnoyarsk 660022, Russia
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Pyatnov, M. V.; Пятнов, Максим Владимирович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; SB RAS [43, 101, 24.29]; Russian Fund of Fundamental Research Grant [14-02-31248]; Russian Ministry of Education and Science under the Government program [3.1276.2014/K]; Russian Federation [MK-250.2013.2]; NSCT-SB RAS joint project
}
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14.

Karpov, S. V.
Photochromic reactions in silver nanocomposites with a fractal structure and their comparative characteristics / S. V. Karpov, A. K. Popov, V. V. Slabko // Tech. Phys. - 2003. - Vol. 48, Is. 6. - P. 749-756, DOI 10.1134/1.1583830. - Cited References: 24 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   COLLOIDAL SILVER
   SELECTIVE PHOTOMODIFICATION
   CLUSTERS
   LIGHT
Аннотация: Conditions for a change in the polarization selectivity of dips in the plasmon absorption spectra of fractal silver nanocomposites irradiated by pulsed laser radiation are studied. The energy thresholds of the polarization selectivity are evaluated, and the polarization and spectral threshold characteristics are compared. Mechanisms behind the correlation between the fractal structure of the nanocomposites, on the one hand, and their optical and photochromic properties, on the other hand, are discussed. (C) 2003 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk Stt. Tech. University, Krasnoyarsk 660074, Russian Federation

Доп.точки доступа:
Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Карпов, Сергей Васильевич
}
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15.

Aver'yanov, E. M.
Orientational order and evolution of the properties of biomolecules in anisotropic media / E.M. Aver'yanov // JETP Letters. - 2012. - Vol. 95, Is. 1. - P. 51-54, DOI 10.1134/S002136401201002X. - Cited References: 18 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
OPTICAL-PROPERTIES
FILMS
Аннотация: Experimental values of the Lorentz tensor components and the local field of a light wave have been obtained for anisotropic films of polypeptide and DNA. These data indicate an increase in the mean value and anisotropy of the polarizability of biomolecules with respect to an isotropic solution. These changes in the polarizability as an indicator of the response of biomolecules to external actions, as well as their chemical and biological activity, specify the direction of the evolution of the properties of biomolecules in orientationally ordered media.

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Публикация на русском языке Аверьянов, Евгений Михайлович. Ориентационный порядок и эволюция свойств биомолекул в анизотропных средах [Текст] / Е.М. Аверьянов // Письма в Журн. эксперим. и теор. физ. : Наука, 2012. - Т. 95 Вып. 1-2. - С. 55-58

Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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16.

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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17.

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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18.

    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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19.

Microstructure and Magnetooptics of Silicon Oxide with Implanted Nickel Nanoparticles / I. S. Edel'man [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 6. - P. 1040-1049, DOI 10.1134/S1063776111160035. - Cited References: 44. - This work was supported by the Russian Foundation for Basic Research (project nos. 11-02-00972, 11-02-90420, 11-02-91341) and the program Research and Scientific-Pedagogical Brainpower of Innovated Russia (State contract 02.740.11.0797). . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
SIMPLE METAL-CLUSTERS
   OPTICAL-PROPERTIES
   ION-IMPLANTATION
   FARADAY-ROTATION
   KERR SPECTRA
   GLASS
   RESONANCE
   PHYSICS
   ENERGY
   FE
Кл.слова (ненормированные):
Disperse structure -- Effective medium model -- Implanted samples -- Irradiation dose -- Magnetic circular dichroisms -- Magnetic Nickel -- Magneto-optical Faraday effect -- Magneto-optical measurements -- matrix -- Metal nanoparticles -- Metallic nickel -- Nickel nanoparticles -- Nickel particles -- Optical range -- Spectral dependences -- Surface plasma resonances -- Tensor components -- Thin near-surface layers -- Amorphous silicon -- Crystal microstructure -- Dichroism -- Faraday effect -- Ion implantation -- Magnetoplasma -- Metallic compounds -- Nanomagnetics -- Nanoparticles -- Nickel -- Silicon compounds -- Silicon oxides -- Spectroscopy -- Tensors -- Transmission electron microscopy -- Nickel oxide
Аннотация: Metallic nickel nanoparticles of various sizes are formed in a thin near-surface layer in an amorphous SiO2 matrix during 40-keV Ni+ ion implantation at a dose of (0.25-1.0) x 10(17) ions/cm(2). The micro-structure of the irradiated layer and the crystal structure, morphology, and sizes of nickel particles formed at various irradiation doses are studied by transmission electron microscopy and electron diffraction. The magnetooptical Faraday effect and the magnetic circular dichroism in an ensemble of nickel nanoparticles are studied in the optical range. The permittivity (epsilon) over cap tensor components are calculated for the implanted samples using an effective medium model with allowance for the results of magnetooptical measurements. The spectral dependences of the tensor (epsilon) over cap components are found to be strongly different from those of a continuous metallic nickel film. These differences are related to a disperse structure of the magnetic nickel phase and to a surface plasma resonance in the metal nanoparticles.

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Держатели документа:
[Edel'man, I. S.
Petrov, D. A.
Ivantsov, R. D.
Zharkov, S. M.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Zharkov, S. M.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Khaibullin, R. I.
Valeev, V. F.
Nuzhdin, V. I.
Stepanov, A. L.] Russian Acad Sci, Zavoisky Phys Tech Inst, Kazan 420029, Russia
[Stepanov, A. L.] Kazan Volga Reg Fed Univ, Kazan 420018, Russia
ИФ СО РАН
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russian Federation
Zavoisky Physical-Technical Institute, Russian Academy of Sciences, Sibirskii trakt 10/7, Kazan, 420029, Russian Federation
Kazan (Volga Region), Federal University, ul. Kremlevskaya 18, Kazan, 420018, Russian Federation

Доп.точки доступа:
Edel'man, I. S.; Edelman, I. S.; Petrov, D. A.; Петров, Дмитрий Анатольевич; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Khaibullin, R. I.; Valeev, V. F.; Nuzhdin, V. I.; Stepanov, A. L.
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20.

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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