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Negative magnetization of the Ni5.33Ta0.67B2O10 crystals / N. V. Kazak [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. 1. - Ст. G.P11. - P. 580-581 . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
V.S. Sobolev Institute of Geology and Mineralogy, SB RAS, Novosibirsk, Russia
P.N. Lebedev Physical 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; Kazak, N. V.; Казак, Наталья Валерьевна; Sofronova, S. N.; Софронова, Светлана Николаевна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bovina, A. F.; Бовина, Ася Федоровна; Seryotkin, Yu. V.; Gavrilkin, S. Yu.; Eremin, E. V.; Еремин, Евгений Владимирович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Ovchinnikov, S. G.; Chernyshov, A. V.; 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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Izotov, A. V.
New approach to determine equilibrium magnetization in magnetic nanostructures / A. V. Izotov, B. A. Belyaev // Workshop "Trends in Nanomechanics and Nanoengineering" : book of abstracts / предс. сем. K. S. Aleksandrov ; зам. предс. сем.: G. S. Patrin, S. G. Ovchinnikov ; чл. лок. ком.: N. N. Kosyrev, A. S. Fedorov [et al]. - 2009. - P. 25

Материалы семинара

Доп.точки доступа:
Aleksandrov, K. S. \предс. сем.\; Александров, Кирилл Сергеевич; Patrin, G. S. \зам. предс. сем.\; Патрин, Геннадий Семёнович; Ovchinnikov, S. G. \зам. предс. сем.\; Овчинников, Сергей Геннадьевич; Kosyrev, N. N. \чл. лок. ком.\; Косырев, Николай Николаевич; Fedorov, A. S. \чл. лок. ком.\; Федоров, Александр Семенович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Изотов, Андрей Викторович; "Trends in Nanomechanics and Nanoengineering", workshop(2009 ; Aug. ; 24-28 ; Krasnoyarsk); Сибирский федеральный университет; Институт физики им. Л.В. Киренского Сибирского отделения РАН
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    Komogortsev, S. V.
    Fractal Dimension Effect on the Magnetization Curves of Exchange-Coupled Clusters of Magnetic Nanoparticles / S. V. Komogortsev, R. S. Iskhakov, V. A. Fel'k // J. Exp. Theor. Phys. - 2019. - Vol. 128, Is. 5. - P. 754-760, DOI 10.1134/S1063776119040095. - Cited References: 54. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund under the research project no. 18-42-240006. . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
THIN-FILMS
   COERCIVE FORCE
   NANOCRYSTALLINE
   SATURATION
   FERROMAGNETS
Аннотация: The effect of the fractal dimension of exchange-coupled clusters of magnetic nanoparticles on their magnetization curves is predicted by scaling estimates. These predictions form the basis for the experimental technique used for determining the fractal dimension of nanoparticle clusters from the magnetization curves. We estimate the reliability of determining the dimension by such methods with the help of micromagnetic simulation. It is shown that the effective dimension of magnetic correlation volumes, which is determined from analysis of the magnetization approaching saturation, is in conformity with the dimension of fractal clusters determined from analysis of their morphology. The dimension estimated from analysis of the coercive field on the particle size in a physically natural situation of the dipole-dipole interaction between nanoparticles provides estimates of the cluster dimension, which strongly differs from estimates obtained from analysis of their morphology.

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Публикация на русском языке Комогорцев, Сергей Викторович. Влияние фрактальной размерности на кривую намагничивания обменно-связанного кластера магнитных наночастиц [Текст] / С. В. Комогорцев, Р. С. Исхаков, В. А. Фельк // Журн. эксперимент. и теор. физ. - 2019. - Т. 155 Вып. 5. - С. 886-893

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660049, Russia.

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Fel'k, V. A.; Комогорцев, Сергей Викторович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [18-42-240006]
}
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    Особенности ферромагнитного резонанса лент аморфных сплавов FeSiBNbCu различного состава / С. В. Комогорцев [и др.] // Материаловедение. - 2019. - № 7. - С. 8-11, DOI 10.31044/1684-579X-2019-0-7-8-11. - Библиогр.: 25 . - ISSN 1684-579X
   Перевод заглавия: Ferromagnetic resonance features in FeSiBNbCu amorphous alloy tapes of different composition
Кл.слова (ненормированные):
аморфные металлические сплавы -- магнитный резонанс -- магнитные свойства -- намагниченность -- amorphous alloy -- magnetic resonance -- magnetic properties -- magnetization
Аннотация: Исследовано резонансное поглощение СВЧ-волн в аморфных лентах FeSiBNbCu различного состава, полученных быстрой закалкой из расплава. Для величины эффективной намагниченности, рассчитанной по величине резонансного поля, наблюдается линейное снижение с ростом концентрации примеси бора, меди, а также суммарного количества атомов немагнитной примеси в лентах сплава FeSiBNbCu на основе железа.
The resonance absorption of microwaves in amorphous FeSiBNbCu tapes of different compositions, prepared by rapid quenching from a melt has been studied. A linear decrease in effective magnetization with increasing boron, copper, and a total nonmagnetic impurity concentration in the FeSiBNbCu iron-based alloy tapes was observed.

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Переводная версия Features of the ferromagnetic resonance of amorphous FeSiBNbCu ribbons with different compositions [Текст] / S. V. Komogortsev, G. S. Krainova, N. V. Il’in [et al.] // Inorg. Mater.: Appl. Res. - 2020. - Vol. 11 Is. 1.- P.177-180

Держатели документа:
Дальневосточный федеральный университет
Институт физики им. Л. В. Киренского Сибирского отделения Российской академии наук - обособленное подразделение ФИЦ КНЦ СО РАН
Сибирский государственный университет науки и технологий им. академика М. Ф. Решетнева
Сибирский федеральный университет

Доп.точки доступа:
Комогорцев, Сергей Викторович; Komogortsev, S. V.; Крайнова, Г. С.; Kraynova G. S.; Ильин, Н. В.; Ilin N. V.; Плотников, В. С.; Plotnikov V. S.; Чеканова, Лидия Александровна; Chekanova, L. A.; Немцев, Иван Васильевич; Nemtsev, I. V.; Юркин, Глеб Юрьевич; Yurkin, G. Yu.; Исхаков, Рауф Садыкович; Iskhakov, R. S.; Ятманов, Д. А.; Yatmanov D. A.
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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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Dzebisashvili, D. M.
Quantum oscillations of magnetization in the antiferromagnetic semimetals on triangular lattice / D. M. Dzebisashvili, A. A. Khudaiberdyev // 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. 1. - Ст. C.O4. - P. 254. - Cited References: 4. - This work was financially supported by the Russian Foundation for Basic Research (RFBR) (project No. 18-02-00837) . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Siberian State University of Science and Technology. MF Reshetneva, 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; Khudaiberdyev, A. A.; 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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    Orlov, V. A.
    Dynamics of magnetization in an array of three-layer nanodiscs / V. A. Orlov, G. S. Patrin, I. N. Orlova // J. Phys. Conf. Ser. - 2019. - Vol. 1389, Is. 1. - Ст. 012005, DOI 10.1088/1742-6596/1389/1/012005. - Cited References: 27. - The reported study was funded by RFBR according to the research project no. 18-02-00161. . - ISSN 1742-6588. - ISSN 1742-6596
   Перевод заглавия: Динамика намагниченности в массиве трехслойных нанодисков
Аннотация: The paper studies associated motion of magnetic vortices in a triple-layer FM/NM/FM disc array. The connection of magnetic layers' magnetization inside of one disc and between the discs is assured by magnetostatic interaction. The frequencies of magnetic vortex resonant motion have been calculated analytically and resonant curves for the arrays with different alternation of magnetic vortex polarity and chirality have been constructed. It has been shown that despite of a small value of the core magnetic moments, taking their interaction into account leads to a small but significant splitting of the resonant frequency.

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Держатели документа:
Siberian Federal University, Krasnoyarsk 660041, Russia
Kirensky Institute of Physics Krasnoyarsk Scientific Center Russian Academy of Sciences Siberian Branch Krasnoyarsk 660036, Russia
Krasnoyarsk State Pedagogical University after V.P. Astafev Krasnoyarsk 660049, Russia

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Orlova, I. N.; Орлов, Виталий Александрович; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
}
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    Orlov, V. A.
    Dynamics of magnetization in an array of three-layer nanodiscs / V. A. Orlov, G. S. Patrin, I. N. Orlova // 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. 1. - Ст. D.P13. - P. 385-386. - Cited References: 2. - The research is done with the financial support of the Russian Foundation for Basic Research in the framework of Project No. 18-02-00161 . - ISBN 978-5-9500855-7-4
   Перевод заглавия: Динамика намагниченности в массиве трехслойных нанодисков

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Krasnoyarsk State Pedagogical University after V.P. Astafev, 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; Patrin, G. S.; Патрин, Геннадий Семёнович; Orlova, I. N.; Орлов, Виталий Александрович; 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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Dzebisashvili, D. M.
Quantum oscillations of magnetization in antiferromagnetic semimetals on a triangular lattice / D. M. Dzebisashvili, A. A. Khudaiberdyev // JETP Letters. - 2018. - Vol. 108, Is. 3. - P. 189-195, DOI 10.1134/S0021364018150067. - Cited References: 21. - We are grateful to Prof. V.V. Val'kov for helpful discussions and valuable remarks. This work was supported by the Russian Foundation for Basic Research, project nos. 16-02-00073 and 18-02-00837. . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
FIELD
Аннотация: The specific features of magnetization in antiferromagnetic semimetals with a low charge carrier density on a triangular lattice in a high magnetic field are studied. It is demonstrated that the well-known plateau in the magnetic field dependence of the magnetization manifesting itself in the subsystem of localized S = 1/2 spins is actually not strictly horizontal but has a slight positive slope. It is found that an abrupt change in the frequency of quantum oscillations of the magnetization in the itinerant subsystem should be observed at the magnetic field values corresponding to the edges of this plateau owing to the strong s-d(f) exchange coupling.

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Публикация на русском языке Дзебисашвили, Дмитрий Михайлович. Квантовые осцилляции намагниченности в антиферромагнитных полуметаллах с треугольной решеткой [Текст] / Д. М. Дзебисашвили, А. А. Худайбердыев // Письма в ЖЭТФ. - 2018. - Т. 108 Вып. 3. - С. 189–195

Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Khudaiberdyev, A. A.; Худайбердыев, Айнур Атхамович; Дзебисашвили, Дмитрий Михайлович; Russian Foundation for Basic Research [16-02-00073, 18-02-00837]
}
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10.

Mechanochemical synthesis of hexagonal ferrites BaFe12O19 / V. Zhuravlev [et al.] // Key Eng. Mater. - 2018. - Vol. 781 KEM. - P. 119-124, DOI 10.4028/www.scientific.net/KEM.781.119. - Cited References: 15
Кл.слова (ненормированные):
Ferromagnetic resonance -- Magnetization curve -- Magnetocrystalline anisotropy -- Mechanochemical synthesis -- Nanostructure hexaferrites
Аннотация: The phase composition, structural parameters, and basic magnetic characteristics of BaFe12O19 hexaferrites prepared by the mechanochemical synthesis with subsequent annealing at a temperature of 1000°С and 1100°С for 1 h are investigated. The influence of the annealing temperature on the properties of synthesized materials is analyzed. Values of the saturation magnetization and the anisotropy field are determined. It is established that annealing temperature in the interval 1000 - 1100 °C does not significantly affect on the phase composition and the size of nanoparticles. The value of the anisotropy field increases substantially with increasing temperature.

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Держатели документа:
Tomsk State University, 36, Lenin Ave., Tomsk, 634050, Russian Federation
Tomsk Scientific Center SB RAS, 10/4, Academicheskii Pr., Tomsk, 634021, Russian Federation
L.V. Kirensky Institute of Physics SB RAS, 50, Academgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Zhuravlev, V.; Nevmyvaka, A.; Itin, V.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials(13th ; Tomsk)(9-14 October 2017)
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11.

Influence of different organic fuels on the phase composition, structure parameters and magnetic properties of hexaferrites BaFe12O19 synthesized by the sol-gel combustion / V. A. Zhuravlev [et al.] // J. Alloys Compd. - 2019. - Vol. 771. - P. 686-698, DOI 10.1016/j.jallcom.2018.08.294. - Cited References: 56. - This work was performed under the Program for Improving Tomsk State University Competitiveness among the World's Leading Scientific and Educational Centers. Part of the work related to the synthesis of the materials was carried out within the framework of the state task of the FASO (Project No 0365-2018-0003 ) for the Tomsk Scientific Center, SB RAS. Part of the work related to the study of magnetization curves was partially funded by RFBR Grant No 16-02-00563. . - ISSN 0925-8388
Кл.слова (ненормированные):
Sol-gel combustion -- Nanocrystalline hexaferrites -- Magnetization curve -- Ferromagnetic resonance -- Magnetocrystalline anisotropy
Аннотация: Phase composition, structure parameters, morphology and basic magnetic characteristics – the specific saturation magnetization values and the magnetic anisotropy fields of the nanostructured BaFe12O19 powders prepared by the sol-gel combustion with the following annealing at 850°С for six hours are investigated. As organic fuels the following materials are used: carbamide (CON2H4), sucrose (C12H22O11), glycine (C2H5NO2) and citric acid (C6H8O7). The influences of the type of the organic fuels on the properties of synthesized materials are analysed. It is shown that in the powders obtained the distribution of particles on the size, the values of saturation magnetizations and the anisotropy fields depend on the fuel type. The sample synthesized using carbamide has the smallest content of the target phase BaFe12O19, the widest particle size distribution and the lowest value of the saturation magnetization in comparison with the other samples. The narrowest distribution of the particles on the size and the highest value of the specific saturation magnetization are observed in the material synthesized with the use of citric acid as an organic fuel. A comparison of the experimental hysteresis loops with the calculated magnetization curves is made. It is shown that the paraprocess plays a significant role in the magnetization processes of the synthesized materials (χpara. ≈ 0.125*10−3 cm3/g). A technique for determining the values of the anisotropy fields and the magnetomechanical ratios from experiments on FMR is also described. Calculations of the magnetization curve and the ferromagnetic resonance line of hexaferrites powders with uniaxial anisotropy were carried out in the independent grains approach.

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Держатели документа:
Tomsk State University, Tomsk, 634050, Russian Federation
Tomsk Scientific Center, SB RAS, Tomsk, 634021, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Zhuravlev, V. A.; Itin, V. I.; Minin, R. V.; Lopushnyak, Y. M.; Svetlichnyi, V. A.; Lapin, I. N.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Lilenko, I. Y.
}
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12.

Pulsed field-induced magnetization switching in antiferromagnetic ferrihydrite nanoparticles / D. A. Balaev [et al.] // Phys. Solid State. - 2018. - Vol. 60, Is. 10. - P. 1973-1978, DOI 10.1134/S1063783418100025. - Cited References: 38. - This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, project no. 17-42-240138. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
BACTERIAL FERRIHYDRITE
   NIO NANOPARTICLES
   250 KOE
   HYSTERESIS
Аннотация: The dynamic magnetization switching of ferrihydrite nanoparticles has been investigated by a pulsed magnetometer technique in maximum fields H-max of up to 130 kOe with pulse lengths of 4, 8, and 16 ms. Ferrihydrite exhibits antiferromagnetic ordering and defects cause the uncompensated magnetic moment in nanoparticles; therefore, the behavior typical of magnetic nanoparticles is observed. The dynamic hysteresis loops measured under the above-mentioned conditions show that the use of pulsed fields significantly broadens the temperature region of existence of the magnetic hysteresis and the coercivity can be governed by varying the maximum field and pulse length. This behavior is resulted from the relaxation effects typical of conventional ferro- and ferrimagnetic nanoparticles and the features typical of antiferromagnetic nanoparticles.

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Публикация на русском языке Импульсное перемагничивание антиферромагнитных наночастиц ферригидрита [Текст] / Д. А. Балаев [и др.] // Физ. тверд. тела. - 2018. - Т. 60 Вып. 10. - С. 1931–1936

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Moscow State Univ Civil Engn, Moscow 129337, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Popkov, S. I.; Попков, Сергей Иванович; Dubynin, N. V.; Stolyar, S. V.; Столяр, Сергей Викторович; Ladygina, V. P.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory; Krasnoyarsk Territorial Foundation for Support of Scientific and RD Activities [17-42-240138]
}
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13.

Temperature-dependent magnetization reversal in exchange bias NiFe/IrMn/NiFe structures / C. Gritsenko [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 482. - P. 370-375, DOI 10.1016/j.jmmm.2019.03.044. - Cited References: 55. - Ch. G. and M. G. acknowledge financial support by the Russian Foundation for Basic Research (RFBR grant. 17-32-50170). Ch. G. acknowledges the 5 top 100 Russian Academic Excellence Project at the Immanuel Kant Baltic Federal University. O.A.T. acknowledges support by the Grants-in-Aid for Scientific Research (Grant Nos. 17 K05511 and 17H05173) from MEXT, Japan, by the grant of the Center for Science and Innovation in Spintronics (Core Research Cluster), Tohoku University, by JSPS and RFBR under the Japan-Russian Research Cooperative Program. V.R. acknowledges the Ministry of Education and Science of the Russian Federation in the framework of government assignment 3.9002.2017/6.7. Electron microscopy examination was carried out at the Center for Collective Use of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences. We also thank Montserrat Rivas for helpful discussions. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
COERCIVITY
   FILM
   ROUGHNESS
   THICKNESS
   HEADS
   IRMN
Кл.слова (ненормированные):
Magnetization reversal -- Exchange bias -- Permalloy
Аннотация: We demonstrate magnetization reversal features in NiFe/IrMn/NiFe thin-film structures with 40% and 75% relative content of Ni in Permalloy in the temperature range from 80 K to 300 K. The magnetization reversal sequence of the two ferromagnetic layers is found to depend on the type of NiFe alloy. In the samples with 75% relative content of Ni, the bottom ferromagnetic layer reverses prior to the top one. On the contrary, in the samples with 40% of Ni, the top ferromagnetic layer reverses prior to the bottom one. These tendencies of magnetization reversal are preserved in the entire range of temperatures. These distinctions can be explained by the morphological and structural differences of interfaces in the samples based on two types of Permalloy.

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Держатели документа:
Immanuel Kant Baltic Fed Univ, A Nevskogo 14, Kaliningrad 236041, Russia.
Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Leninskie Gory 1, Moscow 119991, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akad Gorodok 50-38, Krasnoyarsk 660036, Russia.
Natl Univ Sci & Technol MISiS, Leninsky Prospect 4, Moscow 119049, Russia.
Lomonosov Moscow State Univ, Fac Phys, Leninskie Gory 1-2, Moscow 119991, Russia.
Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia.
Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan.
Tohoku Univ, Ctr Sci & Innovat Spintron, Sendai, Miyagi 9808577, Japan.

Доп.точки доступа:
Gritsenko, C.h.; Dzhun, I.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Gorshenkov, M.; Babaytsev, G.; Chechenin, N.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Tretiakov, Oleg A.; Rodionova, V.; Russian Foundation for Basic Research (RFBR) [17-32-50170]; MEXT, Japan [17 K05511, 17H05173]; Center for Science and Innovation in Spintronics (Core Research Cluster), Tohoku University; JSPS; RFBR under the Japan-Russian Research Cooperative Program; Ministry of Education and Science of the Russian Federation [3.9002.2017/6.7]
}
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14.

Formation of the magnetic subsystems in antiferromagnetic NiO nanoparticles using the data of magnetic measurements in fields up to 250 kOe / S. I. Popkov [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 483. - P. 21-26, DOI 10.1016/j.jmmm.2019.03.004. - Cited References: 76. - We are grateful S.V. Semenov and A.A. Dubrovskiy for their help, S.V. Komogortsev and A.D. Balaev for fruitful discussions, and M.N. Volochaev for the TEM measurements. The TEM investigations were carried out on the equipment of the Center of Collective Use of the Federal Research Center “Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences”. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project: «Magnetic reversal of magnetic nanoparticles in strong pulsed magnetic fields - a new approach to the study of dynamic effects associated with the magnetization of magnetic nanoparticles» (project no. 18-42-240012). . - ISSN 0304-8853
Кл.слова (ненормированные):
Antiferromagnetic nanoparticle -- External magnetic field -- Low temperature regions -- Magnetic subsystems -- Magnetically actives -- Magnetization curves -- Paramagnetic subsystems -- Pulsed magnetic fields -- Magnetic bubbles
Аннотация: It is well-known that the fraction of surface atoms and the number of defects in an antiferromagnetic particle increase with a decrease in the particle size to tens of nanometers, which qualitatively changes the properties of the particle. Specifically, in antiferromagnetic nanoparticles, spins in the ferromagnetically ordered planes can partially decompensate; as a result, an antiferromagnetic particle acquires a magnetic moment. As a rule, uncompensated chemical bonds of the surface atoms significantly weaken the exchange coupling with the antiferromagnetic particle core, which can lead to the formation of an additional magnetic subsystem paramagnetic at high temperatures and spin-glass-like in the low-temperature region. The existence of several magnetic subsystems makes it difficult to interpret the magnetic properties of antiferromagnetic nanoparticles. It is shown by the example of NiO nanoparticles with an average size of 8 nm that the correct determination of the contributions of the magnetic subsystems forming in antiferromagnetic nanoparticles requires magnetic measurements in much stronger external magnetic fields than those commonly used in standard experiments (up to 60–90 kOe). An analysis of the magnetization curves obtained in pulsed magnetic fields up to 250 kOe allows one to establish the contributions of the uncompensated particle magnetic moment μun, paramagnetic subsystem, and antiferromagnetic particle core. The μun value obtained for the investigated NiO particles is consistent with the Néel model, in which μun ∼ N1/2 (N is the number of magnetically active atoms in a particle), and thereby points out the existence of defects on the surface and in the bulk of a particle. It is demonstrated that the anomalous behavior of the high-field susceptibility dM/dH of antiferromagnetic NiO nanoparticles, which was observed by many authors, is caused by the existence of a paramagnetic subsystem, rather than by the superantiferromagnetism effect.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences”, Krasnoyarsk, 660036, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Popkov, S. I.; Попков, Сергей Иванович; Krasikov, A. A.; Красиков, Александр Александрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kirillov, V. L.; Martyanov, O. N.; Balaev, D. A.; Балаев, Дмитрий Александрович
}
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15.

Gokhfel'd, D. M.
Magnetization loops of MgB2 + Co composite tape / D. M. Gokhfel'd, S. V. Komogortsev, S. Altin // Магнитные материалы. Новые технологии" : тезисы докладов : тез. докл. V Байкал. междунар. конф. BICMM-2012 / чл. прогр. ком. R. S. Iskhakov. - Иркутск, 2012. - Ст. O-10. - P13 . - ISBN 978-5-85827-756-9

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Altin, S.; Гохфельд, Денис Михайлович; Байкальская Международная конференция "Магнитные материалы. Новые технологии"(5 ; 2012 ; 21-25 сент. ; п. Листвянка, Иркутская обл.); "Магнитные материалы. Новые технологии", Байкальская международная конференция(5 ; 2012 ; сент. ; 21-25 ; п. Листвянка, Иркутская обл.); "Magnetic materials. New tecnologies", Baikal International Conference(5 ; 2012 ; Sept. 21-25 ; Listvyanka, Irkutsk); Восточно-сибирская государственная академия образованияИркутский государственный университет
}
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16.

    Numerical calculation of high frequency magnetic susceptibility in thin nanocrystalline magnetic films / A. V. Izotov [et al.] // Physica B. - 2018. - Vol. 556. - P. 42-47, DOI 10.1016/j.physb.2018.12.006. - Cited References: 32. - This work was supported by the Ministry of Education and Science of the Russian Federation, №RFMEFI60417X0179. . - ISSN 0921-4526. - ISSN 1873-2135
   Перевод заглавия: Численный расчет высокочастотной магнитной восприимчивости тонких нанокристаллических магнитных пленок
Рубрики:
Physics, Condensed Matter
Кл.слова (ненормированные):
micromagnetic simulation -- magnetization dynamics -- magnetic susceptibility -- ferromagnetic resonance -- nanocrystalline film -- soft magnetic film
Аннотация: Two numerical micromagnetic methods most suitable for calculation of the high frequency magnetic susceptibility of nanocrystalline thin films were considered in detail. The methods are based on the Landau–Lifshitz equation, linearized around the equilibrium state leading to an eigenvalue problem or solved using an undetermined coefficients technique. An analysis and estimation of an efficiency of the methods were carried out. Several conclusions about their advantages and shortcomings, as well as specifics of their practical application were drawn.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, 660036 Krasnoyarsk, Russia
Siberian Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Solovev, P. N.; Соловьев, Платон Николаевич; Boev, N. M.; Боев, Никита Михайлович
}
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17.

Magnetization curves of ferromagnetic microtubes / S. V. Komogortsev [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. 1. - Ст. C.P18. - P. 301. - Cited References: 2. - Support by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project № 18-42-240006 is acknowledged. . - ISBN 978-5-9500855-7-4

Материалы симпозиума,
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Ural Federal University n.a. the first President of Russia B.N. Yeltsin, Ekaterinburg, Russia
Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Reshetnev Siberian State University of Science and Technology, 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; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Neznakhin, D. S.; Nemtsev, I. V.; Немцев, Иван Васильевич; Fel'k, V. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; 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)
Нет сведений об экземплярах (Источник в БД не найден)
}
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18.

    Magnetic properties of ludwigite Mn2.25Co0.75BO5 / D. V. Popov, T. P. Gavrilova, I. F. Gilmutdinov [et al.] // J. Phys. Chem. Solids. - 2021. - Vol. 148. - Ст. 109695, DOI 10.1016/j.jpcs.2020.109695. - Cited References: 36. - This research was supported by the RFBR (project no. 17-02-00953 ). T. P. G., R. M. E., V. A. Sh. acknowledge the financial support from the government assignment for FRC Kazan Scientific Center of RAS . The magnetic measurements were carried out at the Federal Center of Shared Facilities of Kazan Federal University . - ISSN 0022-3697
   Перевод заглавия: Магнитные свойства людвигита Mn2.25Co0.75BO5
Кл.слова (ненормированные):
Ludwigite -- Phase transition -- Magnetization -- Specific heat
Аннотация: Needle-shape single crystals of Mn2.25Co0.75BO5 ludwigite were synthesized by the flux technique and investigated by means of X-ray diffraction, static magnetic susceptibility and specific heat measurements. Magnetization and specific heat experiments showed the presence of ferrimagnetic ordering near TN≃61K. Below this temperature the magnetic properties demonstrated the angular dependence and the high magnetic hardness in a magnetic field applied perpendicular to the crystallographic c axis, which is similar to other cobalt-containing ludwigites. The effective magnetic moment per magnetic ion 4.8μB was calculated from the paramagnetic data. Analysis of the phonon contribution to the specific heat allowed to distinguish the magnetic contribution CM, which has two features. One of which was observed at TN and can be attributed to strong exchange interactions between spins of magnetic ions. The second one at T = 11.6 K is due to the effect of the ligands crystal field on a magnetic ion with S›1/2.

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Держатели документа:
Kazan (Volga Region) Federal University, Kremlevskaya st., 18, Kazan, 420008, Russian Federation
Zavoisky Physical-Technical Institute, Federal Research Center “Kazan Scientific Center of RAS”, Sibirsky tract, 10/7, Kazan, 420029, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Popov, D. V.; Gavrilova, T. P.; Gilmutdinov, I. F.; Cherosov, M. A.; Shustov, V. A.; Moshkina, E. M.; Мошкина, Евгения Михайловна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Eremina, R. M.
}
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19.

    Micromagnetic analysis of edge effects in a thin magnetic film during local excitation of magnetization oscillations / B. A. Belyaev, A. V. Izotov, G. V. Skomorokhov, P. N. Solovev // Russ. Phys. J. - 2020. - Vol. 63, Is. 5. - P. 837-843, DOI 10.1007/s11182-020-02106-3. - Cited References: 19. - This research was performed with financial support of the Russian Foundation for Basic Research within the research project No. 18-32-00086 . - ISSN 1064-8887. - ISSN 1573-9228
Рубрики:
ANISOTROPIES
   SIMULATIONS
   FIELDS
Кл.слова (ненормированные):
micromagnetic simulation -- thin magnetic film -- edge effects -- ferromagnetic resonance -- magnetic anisotropy
Аннотация: The method of numerical micromagnetic simulation was used to study the magnetization dynamics of a thin film with uniaxial magnetic anisotropy during ferromagnetic resonance (FMR) excitation in it on the local sites by a linearly polarized high-frequency magnetic field emitted from the 1 mm opening in the metallic screen of the transmission line. It was established that non-uniformities of demagnetizing fields emerging near the film edges lead not only to the change in the FMR field, but also to the change in the value and direction of the uniaxial anisotropy field. The distribution of non-uniformities of the magnetic anisotropy characteristics over the area of 60 nm thick permalloy film that was measured on the scanning FMR spectrometer agrees well with the micromagnetic simulation results. Demagnetizing fields were proved to be the main cause for the edge effects in magnetic films.

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Публикация на русском языке Микромагнитный анализ краевых эффектов в тонкой магнитной пленке при локальном возбуждении колебаний намагниченности [Текст] / Б. А. Беляев, А. В. Изотов, Г. В. Скоморохов, П. Н. Соловьев // Изв. вузов. Физика. - 2020. - Т. 63 № 5. - С. 116-121

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

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Izotov, A. V.; Изотов, Андрей Викторович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Solovev, P. N.; Соловьев, Платон Николаевич
}
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20.

    Structure, magnetic and thermodynamic properties of heterometallic ludwigites: Cu2GaBO5 and Cu2AlBO5 / R. M. Eremina, T. P. Gavrilova, E. M. Moshkina [et al.] // J. Magn. Magn. Mater. - 2020. - Vol. 515. - Ст. 167262, DOI 10.1016/j.jmmm.2020.167262. - Cited References: 42. - The reported study was supported by the Russian Foundation for Basic Research (RFBR), grant No 17-02-00953. T.P.G., R.M.E. acknowledge the financial support from the government assignment for FRC Kazan Scientific Center of RAS. D.S.I. acknowledges funding from the German Research Foundation through the Collaborative Research Center SFB 1143 in Dresden (project C03) and the Würzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter – ct.qmat (EXC 2147, project-id 39085490). The XRD and EDX measurements have been performed at the X-ray Diffraction Centre and Centre for Microscopy and Microanalysis of the St. Petersburg State University. The magnetometer studies were performed by the subsidy allocated to Kazan Federal University for the state assignment in the sphere of scientific activities (Project No. 0671-2020-0050) . - ISSN 0304-8853
   Перевод заглавия: Структура, магнитные и термодинамические свойства гетерометаллических людвигитов: Cu2GaBO5 и Cu2AlBO5
Кл.слова (ненормированные):
Crystal structure -- Ludwigite -- Quasi-one-dimensional magnetism -- Antiferromagnetic order -- Specific heat -- Magnetization
Аннотация: +We present an extensive study of the structural, magnetic and thermodynamic properties of high-quality monocrystals of two heterometallic oxyborates from the ludwigite family: Cu2GaBO5 and Cu2AlBO5 in the temperature range above 2 K. The distinctive feature of the investigated structures is the selective distribution of Cu and Ga/Al cations. The unit cell of Cu2GaBO5 and Cu2AlBO5 contains four nonequivalent crystallographic sites of metal ions. Two sites in the structure of Cu2GaBO5 are fully occupied by Cu atoms which form the quasi one-dimensional chains along the a-axis. For Cu2AlBO5 all sites are partially occupied by Al and Cu atoms. The joint analysis of low-temperature data on magnetic susceptibility and magnetic contribution to the specific heat showed that Cu2AlBO5 and Cu2GaBO5 exhibit an antiferromagnetic transition at TN=2.4 and 4.1 K, respectively. The magnetic response below TN can be represented as the sum of two contributions: the ordered component and the paramagnetic contribution from defects of the same relative weight. It is shown that the external magnetic field above 2.5 T and 2.8 T for Cu2GaBO5 and Cu2AlBO5, respectively, leads to a broadening of the magnetic phase transition indicating suppression of the long-range antiferromagnetic order.

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Держатели документа:
Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, Sibirsky tract, 10/7, Kazan, 420029, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics, Kazan Federal University, Kazan, 420008, Russian Federation
Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, University Emb. 7/9, St. Petersburg, 199034, Russian Federation
Leibniz Institute for Solid State and Materials Research, IFW Dresden, Dresden, 01069, Germany
Institute for Solid State and Materials Physics, TU Dresden, Dresden, 01069, Germany

Доп.точки доступа:
Eremina, R. M.; Gavrilova, T. P.; Moshkina, E. M.; Мошкина, Евгения Михайловна; Gilmutdinov, I. F.; Batulin, R. G.; Gurzhiy, V. V.; Grinenko, V.; Inosov, D. S.
}
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