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    Holmium iron borate: high-resolution spectroscopy and crystal-field parameters / D. A. Erofeev [et al.] ; ed. E. A. Vinogradov [et al.] // XXV Congress on Spectroscopy. - 2017. - Vol. 132. - Ст. 03013. - (EPJ Web of Conferences), DOI 10.1051/epjconf/201713203013. - Cited References:4 . - ISSN 2100-014X
   Перевод заглавия: Гольмиевый ферроборат: спектроскопия высокого разрешения и параметры кристаллического поля

РУБ Spectroscopy

Аннотация: High-resolution transmission spectra of HoFe3(BO3)(4) single crystals were measured in broad spectral (5000-23000 cm(-1)) and temperature (1.7-300 K) ranges. Crystal-field energies of the Ho3+ ions were determined for a paramagnetic and easy-axis antiferromagnetic phases of the compound. On the basis of these data and of preliminary crystal-field calculations in the frame of the exchange-charge model, crystal-field parameters were found. A parameter of the isotropic Ho-Fe exchange interaction was estimated.
Спектры пропускания высокого разрешения монокристаллов HoFe3(BO3)4 измерялись в широком спектральном диапазоне (5000-23000 см-1) при температурах от 1,7 до 300 К. Определены энергии кристаллического поля ионов Ho3+ для парамагнитной и легкоосной антиферромагнитных фаз соединения. На основе этих данных и предварительных расчетов кристаллического поля в рамках модели обменного заряда были найдены параметры кристаллического поля. Оценен параметр изотропного обменного взаимодействия Ho-Fe.

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Доп.точки доступа:
Erofeev, D. A.; Chukalina, E. P.; Popova, M. N.; Попова, Марина Николаевна; Malkin, B. Z.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Vinogradov, E.A. \ed.\; Naumov, A.V. \ed.\; Gladush, M.G. \ed.\; Karimullin, K.R. \ed.\; Congress on Spectroscopy(25 ; 2016 ; Oct ; 03-07 ; Troitsk)
}
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    Иванова, Оксана Станиславовна.
    Магнитооптические боратные и германатные стекла / О. С. Иванова, Р. Д. Иванцов, И. С. Эдельман. - [Б. м. : б. и.]. - Библиогр.: 1 назв. - Б. ц.
Перевод заглавия: Magnetooptical borate and germanate glasses
   Перевод заглавия: Magnetooptical borate and germanate glasses

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Иванцов, Руслан Дмитриевич; Ivantsov, R. D.; Эдельман, Ирина Самсоновна; Edelman, I. S.; Ivanova, O. S.}
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    Exploration of structural, thermal, vibrational and spectroscopic properties of new noncentrosymmetric double borate Rb3NdB6O12 / V. V. Atuchin [et al.] // Adv. Powder Technol. - 2017. - Vol. 28, Is. 5. - P. 1309-1315, DOI 10.1016/j.apt.2017.02.019. - Cited References: 42. - We are grateful to Guochun Zhang for the crystal structure data on K3YB6O12, and O. Tsydenova and A. Sarapulova for her consultations. This research was supported by SB RAS Program No.II.2P (No. 0356-2015-0412) and RSF (14-22-0143). The reported study was funded by RFBR according to the research projects 15-02-04950 and 15-52-53080, 16-32-00351, 16-52-48010 and 17-52-53031. Also, the work was supported by Act 211 Government of the Russian Federation, contract 02.A03.21.0011 and by the Ministry of Education and Science of the Russian Federation (4.1346.2017/PP). . - ISSN 0921-8831
   Перевод заглавия: Изучение структурных, тепловых, колебательных и спектроскопических свойств нового нецентросимметричного кристалла двойного бората Rb3NdB6O12
Кл.слова (ненормированные):
Rubidium neodymium borate -- Solid state reaction -- Rietveld refinement -- DSC -- Raman scattering
Аннотация: New noncentrosymmetric rare earth borate Rb3NdB6O12 is found in the ternary system Rb2O–Nd2O3–B2O3. The Rb3NdB6O12 powder was fabricated by solid state synthesis at 1050 K for 72 h and the crystal structure was obtained by the Rietveld method. Rb3NdB6O12 crystallized in space group R32 with unit cell parameters a = 13.5236(4), c = 31.162(1) Å, Z = 3. From DSC measurements, the reversible phase transition (I type) in Rb3NdB6O12 is observed at 852–936 K. The 200 μm thick tablet is transparent over the spectral range of 0.3–6.5 μm and the band gap is found as Eg ∼ 6.29 eV. Nonlinear optical response of Rb3NdB6O12 tested via SHG is estimated to be higher than that of K3YB6O12. Blue shift of Nd luminescent lines is found in comparison with other borates. The vibrational parameters of Rb3NdB6O12 are evaluated by experimental methods.

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Держатели документа:
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation
Institute of Chemistry, Tyumen State University, Tyumen, Russian Federation
Laboratory of Single Crystal Growth, South Ural State University, Chelyabinsk, Russian Federation
Laboratory of Oxide Systems, Baikal Institute of Nature Management, SB RAS, Ulan-Ude, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Nanodiagnostics and Nanolithography, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Condensed Matter Spectroscopy, Institute of Automation and Electrometry, SB RAS, Novosibirsk, Russian Federation
Laboratory of High Pressure Minerals and Diamond Deposits, Institute of Geology and Mineralogy, SB RAS, Novosibirsk, Russian Federation

Доп.точки доступа:
Atuchin, V. V.; Subanakov, A. K.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Dorzhieva, S. G.; Gavrilova, T. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Pugachev, A. M.; Tushinova, Y. L.; Yelisseyev, A. P.
}
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    A comparative study of γ-Fe2O3 and ε-Fe2O3 nanoparticles arising in borate glasses doped with Fe and Gd / O. S. Ivanova [et al.] // J. Sib. Fed. Univ. Math. Phys. - 2016. - Vol. 9, Is. 4. - P. 459–462 ; Журн. СФУ. Сер. "Математика и физика", DOI 10.17516/1997-1397-2016-9-4-459-462. - Cited References: 6. - The work was supported partly by the RFBR, 14-02-01211-a, and by the President of Russia Grant NSh-7559.2016.2. . - ISSN 1997-1397
   Перевод заглавия: Сравнительное изучение γ-Fe2O3 и ϵ-Fe2O3 наночастиц, формирующихся в стекле, допированном железом и гадолинием
Кл.слова (ненормированные):
magnetic nanoparticles -- magnetic circular dichroism -- magnetic measurements -- магнитные наночастицы -- магнитный круговой дихроизм -- магнитные измерения
Аннотация: Formation and properties of the iron oxides γ -Fe2O3 and ϵ-Fe2O3 nanoparticles arising in glasses of basic compositions Ge2O-K2O-Al2O3-B2O3 and K2O-Al2O3-B2O3 doped with different concentrations of Fe2O3 and Gd2O3 and subjected to the additional thermal treatment are studied. The X-ray diffraction, TEM microscopy, magnetooptical effects, and electron spin resonance study allow elucidating the matrix and Gd role in determining the nanoparticle properties.
Изучены свойства наночастиц γ-Fe2O3 и ϵ-Fe2O3, формирующихся в стеклах основного состава Ge2O-K2O-Al2O3-B2O3 и K2O-Al2O3-B2O3, допированных Fe2O3 и Gd2O3 и подвергнутых дополни- тельной термической обработке. Результаты исследования рентгеновской дифракции, электрон- ной микроскопии, магнитооптических эффектов и электронного спинового резонанса позволили объяснить роль матрицы и гадолиния в определении свойств наночастиц.

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Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Edelman, I. S.; Эдельман, Ирина Самсоновна; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна

}
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Magnetoelectric phenomena with electromagnons in rare-earth borate / A. A. Mikhin [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. I5.3. - P. 244. - References: 5 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
multiferroics -- electromagnon -- antiferromagnetic resonance -- rare-earth ferroborates

Доп.точки доступа:
Mikhin, A. A.; Михин А. А.; Kuzmenko, A. M.; Кузьменко А. М.; Ivanov, V. Yu.; Иванов В. Ю.; Shuvaev, A.; Шуваев А.; Dziom, V.; Pimenov, A.; Пименов А.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

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A comparative study of γ-Fe2O3 and ε-Fe2O3 nanoparticles arising in borate glasses doped with Fe and Gd / O. S. Ivanova [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P9.11. - P. 397. - References: 1. - The work was supported partly by the RFBR grant No. 14-02-01211 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
magnetic nanoparticles -- magnetic circular dichroism -- magnetic measurements

Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Edelman, I. S.; Эдельман, Ирина Самсоновна; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

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    Near-zero thermal expansion and high ultraviolet transparency in a borate crystal of Zn4B6O13 / X. X. Jiang [et al.] // Adv. Mater. - 2016. - Vol. 28, Is. 36. - P. 7936-7940, DOI 10.1002/adma.201601816. - Cited References:38. - The authors acknowledge Zhuohong Yin for useful discussion and Dr. Siyang Luo for the help in crystal fabrication. This work was supported by the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), the National Scientific Foundations of China (Grant 11474292 and 51401224), and China "863" project (No. 2015AA034203). . - ISSN 0935-9648. - ISSN 1521-4095
   Перевод заглавия: Нулевое тепловое расширение и высокая ультрафиолетовая прозрачность в борате Zn4B6O13

РУБ Chemistry, Multidisciplinary + Chemistry, Physical + Nanoscience
Рубрики:
ZN4O(BO2)6
   TETRAHEDRA
   BEHAVIOR
   RANGE
Аннотация: Intrinsic isotropic near-zero thermal expansion is discovered in borate crystal Zn4B6O13 with high transparency in the ultraviolet region. First-principles calculations demonstrate that the very low thermal expansion originates mainly from the invariability of the solid [B24O48] truncated octahedra that are fixed by the [Zn4O13] clusters in the ZBO structure.

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Держатели документа:
Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Funct Crystals & Laser Technol, Ctr Crystal R&D, Beijing 100190, Peoples R China.
Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
RAS, Lab Crystal Phys, Kirensky Inst Phys, SB, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing 100190, Peoples R China.
Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Fujian, Peoples R China.
Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China.
Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China.

Доп.точки доступа:
Jiang, Xingxing; Molokeev, M. S.; Молокеев, Максим Сергеевич; Gong, Pifu; Yang, Y.i.; Wang, Wei; Wang, Shuaihua; Wu, Shaofan; Wang, Yingxia; Huang, Rongjin; Li, Laifeng; Wu, Yicheng; Xing, Xianran; Lin, Zheshuai; Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC); National Scientific Foundations of China [11474292, 51401224]; China "863" project [2015AA034203]
}
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Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 / A. Vorotynov [et al.] // Phys. Solid State. - 2018. - Vol. 60, Is. 9. - P. 1839-1843, DOI 10.1134/S1063783418090354. - Cited References: 13 . - ISSN 1063-7834
Аннотация: Single crystal of yttrium aluminum borate YAl3(BO3)4 doped with chromium ions (1 at %) was studied using electron paramagnetic resonance spectroscopy. It is shown that chromium ions introduced into the sample occupy yttrium ion sites in the crystal structure. The parameters of the spin Hamiltonian of Cr3+ ions in the YАl3(ВО3)4 matrix are determined at different temperatures. The sign of the fine structure parameter D allows the conclusion that the chromium ions in YА13(ВО3)4 single crystals have an easy-plane anisotropy.

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Публикация "на русском языке" Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 [Текст] / A. Vorotynov [et al.] // Физ. тверд. тела. - 2018. - Т. 60 Вып. 9.- С.1793

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vorotynov, A. M.; Воротынов, Александр Михайлович; Shiyan, Ya. G.; Шиян, Ярослав Германович; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Vorotynova, O.
}
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Microwave and magneto-optic properties of ϵ-Fe2O3 nanoparticles arising in borate glasses doped with Fe and Gd / O. Ivanova [et al.] // EPJ Web Conf. : 1-7 July 2017 : book of abstracts. - 2018. - Vol. 185. - Ст. 03011DOI 10.1051/epjconf/201818503011. - Cited References: 15
Аннотация: The ϵ-Fe2O3 nanoparticles in borate glasses co-doped with low concentrations of Fe2O3 and Gd2O3 were investigated with two experimental techniques-visible magnetic circular dichroism (MCD) and electron spin resonance (ESR). The most prominent features of the MCD spectra are: non-linear dependence of the spectral maxima intensities on the Gd concentration and strong increase with the temperature decrease. The ESR spectra of these glasses exhibit two features with g = 4.3 due to the diluted Fe3+ ions and 2.0 associated both with Fe3+ ions and with nanoparticles. The integrated spectra intensities do not follow the T-1 Curie law suggesting a considerable contribution from the magnetically ordered nanoparticles to ESR. Analysis of the MCD and ESR concentration dependences allow suggestion on the Gd ions incorporation into nanoparticles.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660036, Russian Federation
LOMA, UMR 5798 Universite Bordeaux 1-CNRS, Talence Cedex, 33405, France

Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Kliava, J.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
}
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10.

Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 / A. Vorotynov [et al.] // Физ. тверд. тела. - 2018. - Т. 60, Вып. 9. - С. 1793, DOI 10.21883/FTT.2018.09.46399.075. - Библиогр.: 13. - Полный текст статьи опубликован в журнале "Physics of the Solid States" (Т. 60. Вып. 9). . - ISSN 0367-3294
Аннотация: Single crystal of yttrium aluminum borate YAl3(BO3)4 doped with chromium ions (1 at %) was studied using electron paramagnetic resonance spectroscopy. It is shown that chromium ions introduced into the sample occupy yttrium ion sites in the crystal structure. The parameters of the spin Hamiltonian of Cr3+ ions in the YАl3(ВО3)4 matrix are determined at different temperatures. The sign of the fine structure parameter D allows the conclusion that the chromium ions in YА13(ВО3)4 single crystals have an easy-plane anisotropy.

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Полная версия статьи Electron paramagnetic resonance of Cr3+ ions in single crystals of yttrium aluminum borate YAl3(BO3)4 [Текст] / A. Vorotynov [et al.] // Phys. Solid State. - 2018. - Vol. 60 Is. 9.- P.1839-1843

11.

Crystal structure, phase transition and structural deformations in iron borate (Y0.95Bi0.05)Fe3(BO3)4 in the temperature range 90–500 K / E. S. Smirnova [et al.] // Acta Crystallogr. B. - 2018. - Vol. 74. - P. 226-238, DOI 10.1107/S2052520618002962. - Cited References:27. - The following funding is acknowledged: Russian Foundation for Basic Research (award No. 17-02-00766) and Federal Agency of Scientific Organizations (Agreement No 007-GZ/Ch3363/26). . - ISSN 2052-5206

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
HIGH-PRESSURES
   GDFE3(BO3)4
   SPECTROSCOPY
   IFEFFIT
Кл.слова (ненормированные):
rare-earth iron borates -- crystal structure -- structural phase transition -- structural deformations
Аннотация: An accurate X-ray diffraction study of (Y0.95Bi0.05)Fe3(BO3)4 single crystals in the temperature range 90–500 K was performed on a laboratory diffractometer and used synchrotron radiation. It was established that the crystal undergoes a diffuse structural phase transition in the temperature range 350–380 K. The complexity of localization of such a transition over temperature was overcome by means of special analysis of systematic extinction reflections by symmetry. The transition temperature can be considered to be Tstr ≃ 370 K. The crystal has a trigonal structure in the space group P3121 at temperatures of 90–370 K, and it has a trigonal structure in the space group R32 at 375–500 K. There is one type of chain formed by the FeO6 octahedra along the c axis in the R32 phase. When going into the P3121 phase, two types of nonequivalent chains arise, in which Fe atoms are separated from the Y atoms by a different distance. Upon lowering the temperature from 500 to 90 K, a distortion of the Y(Bi)O6, FeO6, B(2,3)O3 coordination polyhedra is observed. The distances between atoms in helical Fe chains and Fe—O—Fe angles change non-uniformly. A sharp jump in the equivalent isotropic displacement parameters of O1 and O2 atoms within the Fe—Fe chains and fluctuations of the equivalent isotropic displacement parameters of B2 and B3 atoms were observed in the region of structural transition as well as noticeable elongation of O1, O2, B2, B3, Fe1, Fe2 atomic displacement ellipsoids. It was established that the helices of electron density formed by Fe, O1 and O2 atoms may be structural elements determining chirality, optical activity and multiferroicity of rare-earth iron borates. Compression and stretching of these helices account for the symmetry change and for the manifestation of a number of properties, whose geometry is controlled by an indirect exchange interaction between iron cations that compete with the thermal motion of atoms in the structure. Structural analysis detected these changes as variations of a number of structural characteristics in the c unit-cell direction, that is, the direction of the helices. Structural results for the local surrounding of the atoms in (Y0.95Bi0.05)Fe3(BO3)4 were confirmed by EXAFS and Mössbauer spectroscopies.

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Держатели документа:
Russian Acad Sci, Fed Sci Res Ctr Crystallog & Photon, Shubnikov Inst Crystallog, Moscow 119333, Russia.
Natl Res Ctr, Kurchatov Inst, Moscow 123182, Russia.
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Smirnova, Ekaterina S.; Alekseeva, Olga A.; Dudka, Alexander P.; Artemov, V. V.; Zubavichus, Yan V.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Frolov, Kirill V.; Lyubutin, Igor S.; Russian Foundation for Basic Research [17-02-00766]; Federal Agency of Scientific Organizations [007-GZ/Ch3363/26]
}
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12.

Microwave and magneto-optic properties OF ε-FE2O3 nanoparticles arising in borate glasses doped with FE and GD / O. Ivanova [et al.] // Moscow International Symposium on Magnetism (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 4OR-C-15. - P. 726

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Ivanova, O. S.; Иванова, Оксана Станиславовна; Kliava, J.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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13.

    Structural and spectroscopic properties of new noncentrosymmetric self-activated borate Rb3EuB6O12 with B5O10 units / V. V. Atuchin [et al.] // Mater. Des. - 2018. - Vol. 140. - P. 488-494, DOI 10.1016/j.matdes.2017.12.004. - Cited References: 53. - We are grateful to Guochun Zhang for the crystal structure materials on K3YB6O12 and O. Tsydenova, A. Sarapulova for the consultations. The work was supported by Projects № 0356-2015-0412 of SB RAS Program № II.2P and № 0339-2016-0007. The reported study was funded by RFBR according to research projects 16-52-48010, 17-02-00920, 17-03-00886 and 17-52-53031 and RSF project 14-22-00143. The work was supported by Act 211 Government of the Russian Federation, contract № 02.A03.21.0011, and by the Ministry of Education and Science of the Russian Federation (5.5523.2017/8.9). This research was supported by Grant no. 8.2.01.2017 of Tomsk State University Academic D.I. Mendeleev Fund Program. . - ISSN 0264-1275
   Перевод заглавия: Структурные и спектроскопические характеристики самоактивированного бората Rb3EuB6O12 со структурными единицами B5O10
Кл.слова (ненормированные):
Rubidium rare earth borate -- Solid state reaction -- Rietveld refinement -- Raman -- Infrared spectroscopy -- Luminescence
Аннотация: New noncentrosymmetric double borate Rb3EuB6O12 was designed and synthesized by the solid state reaction method, and its crystallographic parameters were obtained by Rietveld analysis. This borate crystallizes in the trigonal space group R32 with cell parameters a = 13.4604(2) Å, c = 30.7981(5) Å, Z = 15. Its structure features a three-dimensional framework composed of the [B5O10]5 − groups that are bridged by Eu-O polyhedra. The existence of B5O10 group in the structure was confirmed by vibrational spectroscopy. Rb3EuB6O12 melts incongruently at 1101 K. The second harmonic generation effect of Rb3EuB6O12 is 16 times higher than that of the α-quartz standard. In the luminescence spectrum, the domination of a single prominent narrow line from the hypersensitive 5D0 - 7F2 manifold of Eu3 + ions is observed, while the 5D0 - 7F1 manifold and ultranarrow 5D0 - 7F0 line are of comparable peak intensity. These features are explained by a specific local symmetry of the Eu3+ ion within the crystal structure of Rb3EuB6O12.

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Держатели документа:
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Single Crystal Growth, South Ural State University, Chelyabinsk, Russian Federation
Baikal Institute of Nature Management, SB RAS, Ulan-Ude, Russian Federation
Buryat State University, Ulan-Ude, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Nanodiagnostics and Nanolithography, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Chemistry, Lomonosov Moscow State University, Moscow, Russian Federation

Доп.точки доступа:
Atuchin, V. V.; Subanakov, A. K.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Gavrilova, T. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Stefanovich, S. Y.
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14.

Magnetic structure and magnetic interactions in terbium iron borate TbFe3(BO3)4 / A. M. Vorotynov [et al.] // Workshop INTAS - Sib. Branch of the RAS Sci. Cooperation on the Res. Project “New Layered 3d-Materials for Spintronics” / chairman G. A. Petrakovskii. - 2007. - P. 13
Аннотация: INTAS (The International Association for the Promotion of Cooperation with Scientists from the New Independent States of the Former Soviet Union) — международная ассоциация по содействию сотрудничеству с учёными новых независимых государств бывшего Советского Союза. Некоммерческая организация, финансировалась главным образом из бюджета Европейского Союза. Являлась крупнейшим фондом, поддерживающим научное сотрудничество между учёными стран бывшего СССР и Европейского Союза с 1993 г. Программы INTAS охватывали широкий круг научно-исследовательских проблем. 22 сентября 2006 года было принято решение о прекращении осуществления программы на основании рекомендации Европейской Комиссии. С 1 апреля 2007 года прекратилось распределение новых грантов.

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Доп.точки доступа:
Petrakovskii, G. A. \chairman\; Петраковский, Герман Антонович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Ritter, C.; Petrakovskii, G. A.; Balaev, A. D.; Балаев, Александр Дмитриевич; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; "New Layered 3d-Materials for Spintronics", Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project(2007 ; March 20-23 ; Krasnoyarsk)
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15.

Mossbauer effect study in Fe1-xVxBO3 solid solutions / O. A. Bayukov [et al.] ; Translated by G. Skrebtsov // Phys. Solid State. - 2004. - Vol. 46, Is. 6. - P. 1088-1094, DOI 10.1134/1.1767250. - Cited References: 28. - One of the authors (M.M. A.-E.) would like to thank the Deutsche Forschungsgemeinschaft for financial support (SFB 608). This study was supported by the Russian Foundation for Basic Research (project no. 03-02-16286) and the federal program “Integration” (project no. Б0017) . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MAGNETO-OPTICAL PROPERTIES
   FEBO3 SINGLE-CRYSTALS
   FERRIC BORATE
   CALCITE STRUCTURE
   IRON BORATE
   TEMPERATURE
   FIELD
   SPECTRA
   FE3BO6
   CRBO3
Аннотация: The Mossbauer effect in the Fe1 - xVxBO3 solid solutions has been measured at 130 and 300 K. The Fe0.05V0.95BO3 composition was studied in the interval 4.2-300 K. The experimental data obtained are described in terms of the model of a dilute magnetic insulator in which atoms of the first coordination sphere provide a major contribution to the hyperfine field at iron nucleus sites. It was found that, at low temperatures, the field H-hf is generated primarily by the iron ion itself and depends only weakly on substitution. The hyperfine interaction parameters in the discrete configuration series 6Fe, 5Fe1V, 4Fe2V, 3Fe3V, and 2Fe4V were determined. The magnitude of the isomer shift suggests that iron in the crystal resides in the trivalent state. (C) 2004 MAIK "Nauka/Interperiodica".

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Публикация на русском языке Эффект Мессбауэра в твердых растворах Fe[1-x]V[x]BO[3] [Текст] / О. А. Баюков [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 6. - С. 1058-1064

Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Cologne, Inst Phys, D-50937 Cologne, Germany
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Physikalisches Institut, Universitat zu Koln, Koln, 50937, Germany
Krasnoyarsk Stt. Tech. University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Abd-Elmeguid, M. M.; Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Skrebtsov, G. \пер.\
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16.

Analysis of the electrical and optical properties of VBO3 single crystals and Fe1-xVxBO3 solid solutions on the basis of a many-electron model of energy band structure / N. B. Ivanova [et al.] // Phys. Solid State. - 2004. - Vol. 46, Is. 8. - P. 1462-1468, DOI 10.1134/1.1788779. - Cited References: 32. - One of the authors (M.M.A.) would like to thank the Deutsche Forschungsgemeinschaft (SFB608) for financial support. This study was supported by the Russian Foundation for Basic Research (project no. 03-02-16286), the program "Integration" (project no. B0017), and the program of the Division of Physical Sciences of the Russian Academy of Sciences "Strongly Correlated Electrons" . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
   CALCITE STRUCTURE
   PHASE-TRANSITION
   FERRIC BORATE
   HIGH-PRESSURE
   FEBO3
   FE1-XCRXBO3
   FERROMAGNET
   MOSSBAUER
   SPECTRA
Аннотация: A many-electron model of the energy band structure of VBO3 and of Fe1 - xVxBO3 solid solutions is proposed with strong electron correlations taken into account. Experimental optical absorption spectra and data on the resistivity are discussed in the framework of the suggested model. Variation in the magnetic and electronic properties of VBO3 and Fe1 - xVxBO3 under high pressure is predicted. For VBO3, a Mott-Hubbard (insulator-metal) transition is expected in the high-pressure phase. In Fe1 - xVxBO3 solid solutions, a nontrivial variation in the properties is predicted, leading to the appearance of a different magnetic state. (C) 2004 MAIK "Nauka / Interperiodica".

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Публикация на русском языке Анализ электрических и оптических свойств монокристаллов VBO[3] и твердых растворов Fe[1-x]V[x]BO[3] на основе многоэлектронной модели из зонной структуры [Текст] / Н. Б. Иванова [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 8. - С. 1422-1427

Держатели документа:
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
ИФ СО РАН
Krasnoyarsk State Tech. University, Krasnoyarsk, 660074, Russian Federation
II. Physikalisches Institut, Universitat zu Koln, Koln, 50937, Germany

Доп.точки доступа:
Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Markov, V. V.; Марков, Владимир Витальевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Abd-Elmeguid, M. M.
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17.

Raman scattering from phonons and magnons in RFe3(BO3)(4) / D. . Fausti [et al.] // Phys. Rev. B. - 2006. - Vol. 74, Is. 2. - Ст. 24403, DOI 10.1103/PhysRevB.74.024403. - Cited References: 26 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
IRON BORATE GDFE3(BO3)(4)
   LIGHT-SCATTERING
   CRYSTALS
   ND
   CRYSTALLIZATION
   TRANSITIONS
   GENERATION
   LASER
Аннотация: Inelastic light scattering spectra of several members of the RFe3(BO3)(4) family reveal a cascade of phase transitions as a function of temperature, starting with a structural, weakly first-order, phase transition followed by two magnetic phase transitions. Those consist of the ordering of the Fe-spin sublattice, revealed by all the compounds, and a subsequent spin-reorientational transition for GdFe3(BO3)(4). The Raman data evidence a strong coupling between the lattice and magnetic degrees of freedom in these borates. The Fe-sublattice ordering leads to a strong suppression of the low-energy magnetic scattering, and a multiple peaked two-magnon scattering continuum is observed. Evidence for short-range correlations is found in the "paramagnetic" phase by the observation of a broad magnetic continuum in the Raman data, which persists up to surprisingly high temperatures.

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Держатели документа:
Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
RAS, Inst Spect, Troitsk 142190, Moscow Region, Russia
RAS, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Material Science Centre, University of Groningen, 9747 AG Groningen, Netherlands
Institute of Spectroscopy, RAS, 142190, Troitsk, Moscow Region, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fausti, D.; Nugroho, A. A.; van Loosdrecht, PHM; Klimin, S. A.; Popova, M. N.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
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18.

Structural and electronic transitions in gadolinium iron borate GdFe3(BO3)(4) at high pressures / A. G. Gavriliuk [et al.] // JETP Letters. - 2004. - Vol. 80, Is. 6. - P. 426-432, DOI 10.1134/1.1830662. - Cited References: 20 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
TRIGONAL GDFE3(BO3)(4)
   RM(3)(BO3)(4) CRYSTALS
   OPTICAL-SPECTRA
   BAND-STRUCTURE
   FEBO3
   GROWTH
Аннотация: The optical properties and structure of gadolinium iron borate GdFe3(BO3)(4) crystals are studied at high pressures produced in diamond-anvil cells. X-ray diffraction data obtained at a pressure of 25.6 GPa reveal a first-order phase transition retaining the trigonal symmetry and increasing the unit cell volume by 8%. The equation of state is obtained and the compressibility of the crystal is estimated before and after the phase transition. The optical spectra reveal two electronic transitions at pressures similar to26 GPa and similar to43 GPa. Upon the first transition, the optical gap decreases jumpwise from 3.1 to similar to2.25 eV. Upon the second transition at P = 43 GPa, the optical gap deceases down to similar to0.7 eV, demonstrating a dielectric-semiconductor transition. By using the theoretical model developed for a FeBO3 crystal and taking into account some structural analogs of these materials, the anomalies of the high-pressure optical spectra are explained. (C) 2004 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia
Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Max Planck Inst Chem, D-55020 Mainz, Germany
ИФ СО РАН

Доп.точки доступа:
Gavriliuk, A. G.; Kharlamova, S. A.; Lyubutin, I. S.; Troyan, I. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluiko, A. M.; Eremets, M. I.; Boehler, R.
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19.

Magnetoelectric effects in gadolinium iron borate GdFe3(BO3)(4) / A. K. Zvezdin [et al.] // JETP Letters. - 2005. - Vol. 81, Is. 6. - P. 272-276, DOI 10.1134/1.1931014. - Cited References: 23 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
OPTICAL SPECTROSCOPY
   TRANSITIONS
   POLARIZATION
   PHASE
Аннотация: Magnetoelectric interactions have been investigated in a single crystal of gadolinium iron borate GdFe3(BO3)(4), whose macroscopic symmetry is characterized by the crystal class 32. Using the results of this study, the interplay of magnetic and electric orderings occurring in the system has been experimentally revealed and theoretically substantiated. The electric polarization and magnetostriction of this material that arise in spin-reorientation transitions induced by a magnetic field have been investigated experimentally. For H parallel to c and H perpendicular to c, H-T phase diagrams have been constructed, and a strict correlation between the changes in the magnetoelectric and magnetoelastic properties in the observed phase transitions has been ascertained. A mechanism of specific noncollinear antiferroelectric ordering at the structural phase transition point was proposed to interpret the magnetoelectric behavior of the system within the framework of the symmetry approach in the entire temperature range. This ordering provides the conservation of the crystal class of the system when the temperature decreases to the antiferroelectric ordering point. The expressions that have been obtained for the magnetoelectric and magnetoelastic energy describe reasonably well the behavior of gadolinium iron borate observed experimentally. (C) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Moscow MV Lomonosov State Univ, Moscow 119992, Russia
Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siverian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Moscow State University, Vorob'evy gory, Moscow, 119992, Russian Federation
Institute of General Physics, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok, 660036, Russian Federation

Доп.точки доступа:
Zvezdin, A. K.; Krotov, S. S.; Kadomtseva, A. M.; Vorob'ev, G. P.; Popov, Y. F.; Pyatakov, A. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Popova, E. A.
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20.

High-pressure magnetic properties and P-T phase diagram of iron borate / A. G. Gavriliuk [et al.] // J. Exp. Theor. Phys. - 2005. - Vol. 100, Is. 4. - P. 688-696, DOI 10.1134/1.1926429. - Cited References: 24 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
FEBO3 SINGLE-CRYSTALS
   NUCLEAR-RESONANCE
   BAND-STRUCTURE
   TRANSITION
   TEMPERATURE
   SCATTERING
Кл.слова (ненормированные):
Antiferromagnetic materials -- Diamonds -- Ferromagnetic materials -- High pressure effects -- Low temperature effects -- Magnetic moments -- Magnetic properties -- Magnetization -- Phase diagrams -- Powders -- Single crystals -- Synchrotron radiation -- Diamond anvil cells -- Electronic transition -- Iron borate -- Nuclear forward scattering (NFS) -- Iron compounds
Аннотация: The high-pressure magnetic states of iron borate (FeBO3)-Fe-57 single-crystal and powder samples have been investigated in diamond anvil cells by nuclear forward scattering (NFS) of synchrotron radiation at different temperatures. In the low-pressure (0 < P < 46 GPa) antiferromagnetic phase, an increase of the Neel temperature from 350 to 595 K induced by pressure was found. At pressures 46-49 GPa, a transition from the antiferromagnetic to a new magnetic state with a weak magnetic moment (magnetic collapse) was discovered. It is attributed to the electronic transition in Fe3+ ions from the high-spin 3d(5) (S = 5/2, (6)A(1g)) to the low-spin (S = 1/2, T-2(2g)) state (spin crossover) due to the insulator-semiconductor-type transition with extensive suppression of strong d-d electron correlations. At low temperatures, NFS spectra of the high-pressure phase indicate magnetic correlations in the low-spin system with a magnetic ordering temperature of about 50 K. A tentative magnetic P-T phase diagram of FeBO3 is proposed. An important feature of this diagram is the presence of two triple points where magnetic and paramagnetic phases of the high-spin and low-spin states coexist. © 2005 Pleiades Publishing, Inc.

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Держатели документа:
Inst High Pressure Phys, Troitsk 142190, Moscow Oblast, Russia
Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia
Russian Acad Sci, Siberian Div, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute for High-Pressure Physics, Troitsk, Moscow oblast, 142190, Russian Federation
Institute of Crystallography, Russian Academy of Sciences, Moscow, 119333, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Gavriliuk, A. G.; Trojan, I. A.; Lyubutin, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Sarkissian, V. A.
}
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