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Magnetic properties of Ho0.9Er0.1Fe3(BO3)4 / I. Gudim [et al.] // Journal of Physics: Conference Series. - 2019. - Vol. 1389, Is. 1. - Ст. 012045, DOI 10.1088/1742-6596/1389/1/012045. - Cited References: 15. - This study was supported by the Russian Foundation for Basic Research, project no. 17-52-45091 IND_a. . - ISSN 1742-6588. - ISSN 1742-6596
Аннотация: The magnetic properties of Ho0.9Er0.1Fe3(BO3)4 ferroborate with the competing Ho–Fe and Er–Fe exchange couplings have been experimentally and theoretically investigated. The measured magnetic characteristics (Ma,c (B), χa,c (T)) and observed features are interpreted using a single theoretical approach based on the molecular-field approximation and calculations within the crystal-field model of the rare-earth ion. Interpretation of the experimental data includes determination of the crystal-field parameters for Ho3+ and Er3+ ions in Ho0.9Er0.1Fe3(BO3)4 and parameters of the Ho–Fe and Er–Fe exchange couplings.

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Держатели документа:
Kirensky Institute of Physics, SB RAS, 660036 Krasnoyarsk, Russia
Bryansk State Technical University, 241035 Bryansk, Russia
Siberian Federal University, 660041 Krasnoyarsk, Russia
UGC-DAE Consortium for Scientific Research, 452017 Indore, India

Доп.точки доступа:
Gudim, I. A.; Гудим, Ирина Анатольевна; Demidov, A.; Eremin, E. V.; Еремин, Евгений Владимирович; Temerov, V. L.; Темеров, Владислав Леонидович; Shukla, D.; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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    Eremin, E. V.
    Magnetic properties of Eu1-xLaxFe3(BO3)4 ferroborate / E. V. Eremin, I. A. Gudim, V. L. Temerov // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. I.P5. - P. 144-145. - Cited References: 7. - This study was supported by the Russian Foundation for Basic Research (RFBR) according to the research projects No. 18-02-00696_a. . - ISBN 978-5-9500855-7-4
   Перевод заглавия: Магнитные свойства ферробората Eu1-xLaxFe3(BO3)4)

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Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Еремин, Евгений Владимирович; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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    Effect of electric field on magnetization and magnetic susceptibility in rare-earth ferroborite multiferroics / A. A. Mukhin [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. K.O8. - P. 312-313. - Cited References: 3. - This work was supported by the Russian Science Foundation (project 16-12-10531) . - ISBN 978-5-9500855-7-4
   Перевод заглавия: Влияние электрического поляна намагниченность и магнитную восприимчивость редкоземельных мультиферроичных ферроборатов

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Prokhorov General Physics Institute of RAS, Moscow, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Mukhin, A. A.; Ivanov, V. Yu.; Tikhanovskii, A. Yu.; Gudim, I. A.; Гудим, Ирина Анатольевна; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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Magnetic linear dichroism of 5 I8 → 5F3 transition in HoFe3(BO3)4 crystal / A. V. Malakhovskii [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov ; чл. прогр. ком. D. M. Dzebisashvili. - 2019. - Vol. 1. - Ст. E.P5. - P. 428-429. - Cited References: 4. - A.V. Malakhovskii acknowledges the support from the Russian Foundation for Basic Researches grant . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Gnatchenko, S. L.; Kachur, I. S.; Piryatinskaya, V. G.; Gudim, I. A.; Гудим, Ирина Анатольевна; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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Dielectric and Raman spectroscopy measurements across structural phase transition in multiferroic HoFe3(BO3)4 single crystal / A. Tripathy [et al.] // AIP Conf. Proc. - 2019. - Vol. 2162: International Conference on Advanced Materials, ICAM 2019. - Ст. 020062, DOI 10.1063/1.5130272. - Cited References: 10. - DKS acknowledges support from the DST, New Delhi, India through the grant no INI/RUS/RFBR/P-269 (Indo Russian project). K.G. thanks, Council of Scientific and Industrial Research, New Delhi, India, for support in the form of SRF.
Аннотация: We report on findings in the HoFe3(BO3)4 single crystal across structural phase transition by the dielectric and Raman spectroscopic measurements. In most of the compounds of RFe3(BO3)4 (R=La-Lu) family low temperature P3121 structure is introduced through structural phase transition (from space group R32). Temperature dependent dielectric measurements on the HoFe3(BO3)4 crystal depicts a step like feature at the structural phase transition at ?366 K. The Raman spectroscopy study also confirms the structural transition around this temperature. A clear signature of structural transition is reflected in the Raman spectra, mainly in the frequency range (200-400 cm-1). Appearance of new Raman modes below the transition temperature also indicates that the transition is from a high symmetry phase to a low symmetry phase.

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UGC-DAE Consortium for Scientific Research, Indore, 452001, India
Department of Physics, Aligarh Muslim University, Aligarh, 202002, India
L. V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Tripathy, A.; Gautam, K.; Dey, K.; Ahad, A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Sathe, V. G.; Shukla, D. K.; International Conference on Advanced Materials(12-14 June 2019 ; Kannur, India)
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    Magnetic circular dichroism in the canted antiferromagnet α-Fe2O3: bulk single crystal and nanocrystals / R. Ivantsov [et al.] // J. Magn. Magn. Mater. - 2020. - Vol. 498. - Ст. 166208, DOI 10.1016/j.jmmm.2019.166208. - Cited References: 60. - The authors thank S.L. Sukhachev for help in conducting absorption experiments and S.G. Ovchinnikov for fruitful discussions. The work is supported by Russian Academy of Sciences in the frame of the Project № 0356-2017-0030. . - ISSN 0304-8853. - ISSN 1873-4766
   Перевод заглавия: Круговой магнитный дихроизм в антиферромагнетике α-Fe2O3: объемный монокристалл и нанокристаллы
Кл.слова (ненормированные):
Hematite -- α-Fe2O3 -- optical absorption -- magnetic circular dichroism -- ellipsometric parameters -- Raman scattering -- one-ion d-d transitions -- pare exciton-magnon transitions
Аннотация: Hematite, α-Fe2O3, is a canted antiferromagnet with the Neel temperature of 960 K. The Morin transition, which occurs when the temperature is lowered to ∼260 K, when the magnetic moments of the sublattices become strictly antiparallel to each other and the resulting magnetic moment disappears, is a characteristic feature of this compound. Detailed investigations are presented here of the magneto-optical effects in the α-Fe2O3 nanoparticles in the transmitted light and in the α-Fe2O3 single crystal in the reflected light. Two types of magneto-optic features were revealed in the magnetic circular dichroism (MCD) spectrum. Some of them described by the Gauss line shape were associated with one-ion d-d transitions. Others were described by the S-shaped line with the inflection points corresponding to the absorption maxima. Last features were assigned to the pair exciton-magnon transitions. An exceptionally strong S-shaped line at 2.0-2.5 eV appeared to be a unique feature of α-Fe2O3 distinguishing it from other iron oxide compounds. The origin of the high effectiveness of the pair exciton-magnon interaction giving rise to this strong S-shaped feature in the MCD spectrum of α-Fe2O3 is discussed.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk,660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia

Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Ivanova, O. S.; Иванова, Оксана Станиславовна; Zharkov, S. M.; Жарков, Сергей Михайлович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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Magnetic properties of Ho0.9Er0.1Fe3(BO3)4 / I. A. Gudim [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. K.P7. - P. 326-327. - Cited References: 9. - This study was supported by the Russian Foundation for Basic Research, project no. 17-52-45091 IND_a. . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Bryansk State Technical University, Bryansk, Russia
UGC DAE Consortium for Scientific Research, Indore, India

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Gudim, I. A.; Гудим, Ирина Анатольевна; Demidov, A. A.; Eremin, E. V.; Еремин, Евгений Владимирович; Shukla, D. K.; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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    Growth of Ho0,9Er0,1Fe3(BO3)4 from solutions based on Bi2MO3O12 and Li2WO4 / I. A. Gudim [et al.] // International conference "Mechanisms and non-linear problems of nucleation and growth of crystals and thin films" MGCTF'19 : book of abstracts. - 2019. - P. . - Cited References: 6. - The study was supported by the Russian Foundation for Basic Research, projects no. 17-02-00826, 17-52-45091 and 18-02-00696
   Перевод заглавия: Выращивание Ho0,9Er0,1Fe3(BO3)4 из растворов-расплавов на основе Bi2Mo3O12 и Li2WO4

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Bryansk State Technical University, Bryansk, Russia
UGC DAE Consortium for Scientific Research, Indore, India

Доп.точки доступа:
Gudim, I. A.; Гудим, Ирина Анатольевна; Demidov, A. A.; Eremin, E. V.; Еремин, Евгений Владимирович; Shukla, D. K.; Mechanisms and non-linear problems of nucleation and growth of crystals and thin films, International conference(2019 ; July ; 1-5 ; Saint-Petersburg); "Механизмы и нелинейные проблемы нуклеации и роста кристаллов и тонких плёнок", международная конференция (2019 ; июль ; 1-5 ; Санкт-Петербург); Институт проблем машиноведения РАН
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Mapping the twinning in multiferroic single crystals: SmFe3(BO3)3 / I. A. Gudim, E. Ovchinnikova, K. Kozlovskaya [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. K.P3. - P. 321. - Cited References: 4. - This work is supported by the Russian Science Foundation [grant 19-72-00002] . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Lomonosov Moscow State University
ESRF-The European Synchrotron, Grenoble, France
Prokhorov General Physics Institute RAS
Shubnikov Institute of Crystallography, FSRC “Crystallography and Photonics” RAS

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Gudim, I. A.; Гудим, Ирина Анатольевна; Ovchinnikova, E.; Kozlovskaya, K.; Wilhelm, F.; Ivanov, V.; Mikhin, A.; Dmitrienko, V.; Rogalev, A.; Platunov, M. S.; Платунов, Михаил Сергеевич; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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10.

    Structural, electronic and vibrational properties of YAl3(BO3)4 / A. S. Oreshonkov, E. M. Roginskii, N. P. Shestakov [et al.] // Materials. - 2020. - Vol. 13, Is. 3. - Ст. 545, DOI 10.3390/ma13030545. - Cited References: 72. - This research was funded by Russian Foundation for Basic Research (18-03-00750, 18-05-00682 and 18-32-20011). - The computations were performed using the facilities of the Computational Center of the Research Park of St. Petersburg State University. We are grateful to the Center of collective use of FRC KSC SB RAS for the provided equipment namely Bruker Vertex 70V, Emitech K575XD, Hitachi TM3000 and Bruker Smart ApexII. Some parts of the experiments were performed in the multiple-access center “High-Resolution Spectroscopy of Gases and Condensed Matter” in IA&E SBRAS (Novosibirsk, Russia). The experimental part corresponding to Raman measurements was supported by the Ministry of Education and Science of the Russian Federation, grant no AAAA-A17-117052410033-9. The authors thank A.M. Sysoev and V.M. Sventitsky for assistance with sample orientation . - ISSN 1996-1944
   Перевод заглавия: Структурные, электронные и колебательные свойства YAl3(BO3)4
Кл.слова (ненормированные):
YAl3(BO3)4 -- huntite-like structure -- rare-earth alumoborates -- infrared spectra -- monoclinic domains
Аннотация: The crystal structure of YAl3(BO3)4 is obtained by Rietveld refinement analysis in the present study. The dynamical properties are studied both theoretically and experimentally. The experimental Raman and Infrared spectra are interpreted using the results of ab initio calculations within density functional theory. The phonon band gap in the Infrared spectrum is observed in both trigonal and hypothetical monoclinic structures of YAl3(BO3)4. The electronic band structure is studied theoretically, and the value of the band gap is obtained. It was found that the YAl3(BO3)4 is an indirect band gap dielectric material.

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Держатели документа:
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
School of Engineering and Construction, Siberian Federal University, Krasnoyarsk 660041, Russia
Laboratory of Spectroscopy of Solid State, Ioffe Institute, St. Petersburg 194021, Russia
Laboratory of Radiospectroscopy and Spintronics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia
Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk 630090, Russia
Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
Department of General and Special Chemistry, Industrial University of Tyumen, Tyumen 625000, Russia

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Roginskii, E. M.; Shestakov, N. P.; Шестаков, Николай Петрович; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Nemtsev, I. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Adichtchev, S. V.; Pugachev, A. M.; Denisenko, Yu. G.
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11.

    Magnetoelectric properties of NdSc3(BO3)4 / I. A. Gudim [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. K.P31. - P. 370. - Cited References: 5. - The study was supported by the Russian Foundation for Basic Research, project no. 17-02-00826, 17-52-45091 and 18-02-00696 . - ISBN 978-5-9500855-7-4
   Перевод заглавия: Магнитоэлектрические свойства NdSc3(BO3)4

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Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Siberian State University of Science and Technologies, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Gudim, I. A.; Гудим, Ирина Анатольевна; Eremin, E. V.; Еремин, Евгений Владимирович; Temerov, V. L.; Темеров, Владислав Леонидович; Titova, V. R.; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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12.

The reversal magnetoelectric mee-effect in the SmFe3(BO3)4 multiferroic in DC and AC electric fields / A. L. Freydman [et al.] // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. K.P39. - P. 381-382. - Cited References: 3. - This study was supported by the Russian Foundation for Basic Research, project no. 17-32-50043 . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Institute for Spectroscopy, Russian Academy of Sciences, Moscow, Troitsk, Russia
Moscow Institute of Physics and Technology (State University), Dolgoprudny, Russia
Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Freydman, A. L.; Фрейдман, Александр Леонидович; Erofeev, D. A.; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; Manelyuk, S.; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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13.

Investigation structural and magnetic transitions in multiferroics with huntite structure HоFe3-xGax(BO3)4 and TbFe3-xGax(BO3)4 / A. S. Krylov [et al.] // Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM : Abstract book. - 2019. - P. 506. - Cited References: 3. - RFBR funded the reported study according to the research project № 18-02-00754

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Moshkina, E. M.; Мошкина, Евгения Михайловна; Gudim, I. A.; Гудим, Ирина Анатольевна; Krylova, S. N.; Крылова, Светлана Николаевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; IEEE International Symposium on Applications of Ferroelectrics(2019 ; July ; 14-19 ; Lausanne, Switzerland); International Conference on ElectroCeramics(2019 ; July ; 14-19 ; Lausanne, Switzerland); European Meeting on Ferroelectricity(14 ; 2019 ; 14-19 July ; Lausanne, Switzerland); International Workshop on PiezoMEMS(2019 ; July ; 14-19 ; Lausanne, Switzerland); Piezoresponse Force Microscopy Workshop(2019 ; July ; 14-19 ; Lausanne, Switzerland)
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14.

Comparing the magnetic and magnetoelectric properties of the SmFe3(BO3)4 ferroborate single crystals grown using different solvents / E. Eremin [et al.] // J. Cryst. Growth. - 2019. - Vol. 518. - P. 1-4, DOI 10.1016/j.jcrysgro.2019.04.017. - Cited References: 17. - This study was supported by the Russian Foundation for Basic Research (RFBR) according to the research projects No. 18-02-00696_a and RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund by project No. 18-42-240011 p_a. . - ISSN 0022-0248. - ISSN 1873-5002

РУБ Crystallography + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
POLARIZATION
FEATURES
Кл.слова (ненормированные):
Impurities -- Growth from solutions -- Single crystal growth -- Borates -- Ferroelectric materials -- Magnetic materials
Аннотация: SmFe3(BO3)4 single crystals have been grown from the bismuth trimolybdate and lithium tungstate-based melt–solutions. Samarium ferroborate single crystals were grown first from the lithium–tungstate flux. The magnetic and magnetoelectric properties of the synthesized crystals have been compared. It is shown that the SmFe3(BO3)4 ferroborate grown from the bismuth trimolybdate-based melt–solution contains impurities of Bi3+ ions (∼5% at.), which replace Sm3+ ions, while the SmFe3(BO3)4, ferroborate grown from the lithium tungstate-based melt–solution contains minor or zero amounts of such impurities. The magnetoelectric and magnetodielectric effects with the Bi3+ admixture appeared 1.5× stronger than in SmFe3(BO3)4; this is probably due to twinning.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Eremin, E. V.; Еремин, Евгений Владимирович; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Smolyakov, D. A.; Смоляков, Дмитрий Александрович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Russian Foundation for Basic Research (RFBR) [18-02-00696_a]; RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [18-42-240011 p_a]
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15.

Magnetic circular dichroism and absorption spectra of 5I8 → 5F5 transition in HoAl3(BO3)4 and HoFe3(BO3)4 single crystals / A. V. Malakhovskii [et al.] // Phys. Lett. A. - 2019. - Vol. 383, Is. 16. - P. 1960-1966, DOI 10.1016/j.physleta.2019.03.016. - Cited References: 34. - The work was supported by the Russian Foundation for Basic Researches grant 19-02-00034. . - ISSN 0375-9601
Кл.слова (ненормированные):
Ho3+ ion -- f-f transitions -- Magnetic circular dichroism -- Electron structure
Аннотация: Comparative study of magnetic circular dichroism (MCD) and absorption spectra of HoAl3(BO3)4 and HoFe3(BO3)4 single crystals in the region of 5I8 → 5F5 transition of the Ho3+ ion was carried out. Absorption spectra were decomposed into the Lorentz shape components and intensities of transitions were obtained. Unusually strong vibronic transitions were observed in HoAl3(BO3)4, but were not observed in HoFe3(BO3)4 that testified to the strong non diagonal vibronic interaction in HoAl3(BO3)4. The MCD spectra were analyzed in approximation of the ∣J,± MJ≻ of the wave functions of the free atom and using concept of the crystal quantum number. Peculiarity of application of this concept to ions with integer moments was revealed and modification of the concept was suggested. With the help of the MCD spectra, the Zeeman splitting of some transitions was found. In particular, the Landé factor gC ≈2 of the ground state of the Ho3+ ion in HoAl3(BO3)4 in the trigonal axis direction was determined. It appeared to be five times less than that in HoFe3(BO3)4 also found with the help of the MCD.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sokolov, V. V.; Соколов, Валерий Владимирович; Gudim, I. A.; Гудим, Ирина Анатольевна; Rautskii, M. V.; Рауцкий, Михаил Владимирович
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16.

Paramagnetic magneto-optical activity of f-f transitions in HoFe3(BO3)4 and HoAl3(BO3)4 single crystals / V. V. Sokolov [et al.] // Opt Mater. - 2019. - Vol. 94. - P. 35-40, DOI 10.1016/j.optmat.2019.05.024. - Cited References: 38. - The work was supported by the Russian Foundation for Basic Researches grant 19-02-00034. . - ISSN 0925-3467
Кл.слова (ненормированные):
Magnetic circular dichroism -- f-f transitions -- Rare earth ferroborates -- Rare earth alumoborates
Аннотация: Absorption and magnetic circular dichroism (MCD) spectra of HoFe3(BO3)4 and HoAl3(BO3)4 single crystals were measured as a function of temperature in the range of 90–293 K. Based on integrals of f-f absorption and МСD bands, temperature dependences of the paramagnetic magneto-optical activity (MOA) of f-f transitions were obtained for the first time. It was revealed that MOA of the same f-f transitions in the studied crystals were substantially different 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 as a consequence of the nature of f-f transitions allowance. In temperature dependences of the MOA of two transitions the singularities were revealed, which indicated to some local structural distortions in the corresponding excited states.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Sokolov, V. V.; Соколов, Валерий Владимирович; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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17.

Магнитоемкость, магнитоупругость и магнитопьезоэлектрический эффект в HoFe3(BO3)4 / М. П. Колодяжная [и др.] // Физ. низких температур. - 2018. - Т. 44, № 12. - С. 1712-1720. - Библиогр.: 18 . - ISSN 0132-6414
Кл.слова (ненормированные):
магнитоэлектрические -- пьезоэлектрические -- магнитоупругие эффекты -- мультиферроики
Аннотация: В монокристаллах ферробората HoFe3(BO3)4 измерены основные компоненты тензора модулей упругости и пьезомодуль. Изучены спин-зависимые вклады в скорость звука, диэлектрическую проницаемость и пьезоотклик в антиферромагнитном состоянии. Определены параметры магнитоэлектрической и магнитоупругой связей в легкоплоскостной магнитоупорядоченной фазе. Дана феноменологическая интерпретация наблюдаемых эффектов.

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Переводная версия Magnetocapacitance, magnetoelasticity, and magnetopiezoelectric effect in HoFe3(BO3)4 [Текст] / L. S. Kolodyazhnaya [et al.] // Low Temp. Phys. - 2018. - Vol. 44 Is. 12.- P.1341-1347

Держатели документа:
Институт физики им. Л.В. Киренского Сибирского отделения РАН
Физико-технический институт низких температур им. Б.И. Веркина НАН Украины

Доп.точки доступа:
Колодяжная, М. П.; Звягина, Г. А.; Билыч, И. В.; Жеков, К. Р.; Бурма, Н. Г.; Филь, В. Д.; Гудим, Ирина Анатольевна; Gudim, I. A.
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18.

Magnetic field induced local structural transformations in the optically excited states 5F2 and 5F3 of HoFe3(BO3)4 single crystal / A. V. Malakhovskii [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 476. - P. 177-182, DOI 10.1016/j.jmmm.2018.12.078. - Cited References: 25. - A.V. Malakhovskii acknowledges the support from the Russian Foundation for Basic Researches grant 16-02-00273 and from the Project of Russian Academy of Science No. 0356-2017-0030. . - ISSN 0304-8853
Кл.слова (ненормированные):
f-f transitions -- Ho3+ ion -- Excited states -- Local properties
Аннотация: We measured absorption spectra of transitions 5I8 → 5F2, 5F3 in Ho3+ ion in the HoFe3(BO3)4 single crystal at temperature 2 K as a function of magnetic field 0–65 kOe directed along a and c axes. The spectra were decomposed to the Lorentz shape components and magnetic field dependences of their parameters: position, intensity and line width, were obtained. Substantial difference between dependences of the energy and intensity of the transitions on magnetic field was revealed. So, the abrupt changes of the electron transition energies were mainly observed at the reorientation magnetic phase transitions in the crystal. A number of singularities in the magnetic field dependences of the electron transition intensities were revealed both at the reorientation transitions and outside of them. The singularities in the average intensities of transitions into multiplets at the reorientation magnetic transitions are due to the changes of the odd part of the crystal field, responsible for the allowance of f-f transitions, and also are due to the changes of the magnetic state. The singularities in behavior of intensity of each separate transition are due to the local even distortions in the excited states, which mix the electron states.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, 61103, Ukraine

Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Gnatchenko, S. L.; Kachur, I. S.; Piryatinskaya, V. G.; Gudim, I. A.; Гудим, Ирина Анатольевна
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19.

Element selective magnetism in Ho0.5Nd0.5Fe3(BO3)4 single crystal probed with hard X-ray magnetic circular dichroism / M. Platunov [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 479. - P. 312-316, DOI 10.1016/j.jmmm.2019.02.040. - Cited References: 40. - The study was supported in part by the grants of the Russian Foundation for Basic Research (project Nos. 16-32-60049, 17-02-00826, 18-42-243007) and the Foundation for Assistance to Small Innovative Enterprises (FASIE, UMNIK program). The magnetic measurements were carried out in the Shared Facility Centre of P.N. Lebedev Physical Institute of RAS. We are grateful to Dr. Alexey Bosak for providing assistance of the structural experiments on the ID28 beamline. We are also grateful to Dr. Evgeniy Eremin from Kirensky Institute of Physics for providing the results of magnetic measurements and for useful discussions. The authors thank the ID12 beamline staffs for help during the XMCD experiment and also gratefully acknowledge the beamtime provision (proposal HC-1804) by the ESRF. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
MICROSTRUCTURE
TRANSITIONS
ND
Кл.слова (ненормированные):
X-ray magnetic circular dichroism -- X-ray absorption -- Magnetic properties
Аннотация: We present a study of a Ho0.5Nd0.5Fe3(BO3)4 single crystal aiming at understanding the roles of each magnetic sublattices in magnetic transitions at low temperatures. The crystal structure is determined to have the R32 symmetry in whole studied temperature range but the crystal appears to be racemic. Element selective magnetic properties studied with X-ray magnetic circular dichroism at the L2,3-edges of Ho and Nd, and at the Fe K-edge at T = 3 K under magnetic fields of ±17 T are compared with the results of macroscopic magnetization measurements in pure and substituted crystals. All three magnetic sublattices are shown to be strongly coupled and to undergo a spin-reorientation transition when magnetic field is applied along the trigonal c-axis. On the contrary, when magnetic field is applied in the ab-plane only the holmium atoms exhibit a sizeable magnetization jump. This result allows us to conclude that the spin-flop transitions observed in macroscopic magnetization curves and associated anomalies of electric polarization are due to the Ho3+ magnetic moment reorientation.

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Держатели документа:
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Akademgorodok 50,Bld 38, Krasnoyarsk 660036, Russia.
European Synchrotron, ESRF, 71 Ave Martyrs CS40220, F-38043 Grenoble 9, France.
Swiss Norwegian Beamlines ESRF, 71 Ave Martyrs CS40220, F-38043 Grenoble 9, France.
RAS, PN Lebedev Phys Inst, Moscow 119991, Russia.

Доп.точки доступа:
Platunov, M. S.; Платунов, Михаил Сергеевич; Kazak, N. V.; Казак, Наталья Валерьевна; Dudnikov, V. A.; Дудников, Вячеслав Анатольевич; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Gavrilkin, S. Yu.; Dyadkin, Vadim; Dovgaliuk, Iurii; Chernyshov, Dmitry; Hen, Amir; Wilhelm, Fabrice; Rogalev, Andrei; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Russian Foundation for Basic Research [16-32-60049, 17-02-00826, 18-42-243007]; Foundation for Assistance to Small Innovative Enterprises (FASIE, UMNIK program)
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20.

Complex magnetic order in the Nd(Tb)Fe3(BO3)4 multiferroic revealed by single-crystal neutron diffraction / I. V. Golosovsky [et al.] // Phys. Rev. B. - 2019. - Vol. 99, Is. 13. - Ст. 134439, DOI 10.1103/PhysRevB.99.134439. - Cited References: 33. - This work was supported by the Russian Grant No. RFBR 16-02-00058. A.A.M. acknowledges the financial support from the Russian Science Foundation (16-12-10531). . - ISSN 2469-9950
Кл.слова (ненормированные):
Antiferromagnetism -- Binary alloys -- Crystal structure -- Crystallography -- Magnetic structure -- Neodymium compounds -- Neutron diffraction -- Single crystals -- Terbium compounds
Аннотация: Magnetic structure of the substituted multiferroics-ferroborates Nd0.9Tb0.1Fe3(BO3)4 and Nd0.8Tb0.2Fe3(BO3)4 were determined in the framework of a self-consistent refinement of the single crystal neutron diffraction data. The small substitution of Nd for Tb leads to the reorientation of the main antiferromagnetic vector L from the basal plane towards the hexagonal axis. The reorientation takes place via an angular structure for which L does not coincide with the principal crystallographic directions and evolves with temperature due to competing magnetic anisotropies of Fe, Nd, and Tb subsystems. Our refinement at 2 K reveals the existence of distortions in the collinear antiferromagnetic Fe spin arrangement suggested before in other ferroborates. Therefore, besides the main antiferromagnetic vector L, the magnetic structure involves additional fine symmetrized combinations of spin components allowed by symmetry. They coexist with certain L components and could originate from the antisymmetric Dzyaloshinsky-Moriya Fe-Fe exchange interactions. At higher temperatures, the magnetic structure is described by the simple collinear model, where the L vector is deviated from the hexagonal plane. © 2019 American Physical Society.

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National Research Center, Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics Institute, Gatchina, 188300, Russian Federation
Prokhorov General Physics Institute, RAS, Moscow, 119991, Russian Federation
Universite Grenoble Alpes, CEA, INAC-MEM, Grenoble, 38000, France
Institucio Catalana de Recerca i Estudis Avancats, Barcelona, E-08010, Spain
Fisika Aplikatua II, Zientzia Eta Teknologia Fakultatea, Universidad Del Pais Vasco, UPV/EHU, Bilbao, 48940, Spain
Kirenskii Institute of Physics, Siberian Division of RAS, Krasnoyarsk, 660038, Russian Federation

Доп.точки доступа:
Golosovsky, I. V.; Vasilev, A. I.; Mukhin, A. A.; Ressouche, E.; Skumryev, V.; Urcelay-Olabarria, I.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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