A Model of the Electronic Structure of a FeRh Alloy Undergoing an Antferromagnetic–Ferromagnetic Phase Transition
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
A Model of the Electronic Structure of a FeRh Alloy Undergoing an Antferromagnetic–Ferromagnetic Phase Transition
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| Автор |
Kurkin, M. I.
Telegin, A. V. Agzamova, P. A. Bessonov, V. D. Neznakhin, D. S. Baranov, N. V. |
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| Тематика |
AFM–FM PHASE TRANSITION
DELOCALIZED ELECTRONS ELECTRONIC STRUCTURE MODEL FERH ALLOY MAGNETIC SUSCEPTIBILITY BINARY ALLOYS ELECTRONS FORECASTING FREQUENCY MODULATION IRON ALLOYS MAGNETIC MOMENTS MAGNETIC SUSCEPTIBILITY TEMPERATURE ANTIFERROMAGNETIC PHASIS ANTIFERROMAGNETICS ANTIFERROMAGNETIC–FM PHASE TRANSITION DELOCALIZED ELECTRON ELECTRONIC STRUCTURE MODEL ELECTRONIC.STRUCTURE FE-RH ALLOY FERROMAGNETIC PHASE TRANSITION PROPERTY STRUCTURE MODELS ELECTRONIC STRUCTURE |
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| Описание |
Abstract: A new approach to describing the magnetic properties of FeRh alloys is proposed. It is based on two assumptions about the properties of 3d and 4d electrons in these alloys. The first is the assumption that the 4d band is submerged under the Fermi level to a depth that ensures its complete filling at a temperature T = 0 K. The second is the assumption that there are two different spatial distributions of 3d and 4d electrons that are compatible with one atomic structure. The first assumption makes it possible to explain the absence of uncompensated spins of 4d electrons in the low-temperature antiferromagnetic (AFM) phase of FeRh. The second assumption is proposed to explain the strong changes in the spin structure of the FeRh alloy upon the AFM–FM transition, while its atomic structure is almost unchanged. Attempts have been made to predict the new properties of the FeRh alloy that follow from these assumptions. Our second assumption proved to be successful and enabled us to predict the existence of local magnetic moments of 3d electrons in the AFM phase, which are larger than the magnetic moments of Fe ions. Measurements of the magnetic susceptibility of the FeRh alloy in the AFM phase confirmed this prediction. © 2022, The Author(s).
Ministry of Education and Science of the Russian Federation, Minobrnauka, (AAAA-A18-118020190095-4) This work was carried out within a state task of the Ministry of Education and Science of the Russian Federation (subject “Quantum”, state registration no. AAAA-A18-118020190095-4). |
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| Дата |
2024-04-08T11:07:06Z
2024-04-08T11:07:06Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Kurkin, MI, Telegin, AV, Agzamova, PA, Bessonov, VD, Neznakhin, DS & Baranov, NV 2022, 'A Model of the Electronic Structure of a FeRh Alloy Undergoing an Antferromagnetic–Ferromagnetic Phase Transition', Physics of Metals and Metallography, Том. 123, № 6, стр. 543-551. https://doi.org/10.1134/S0031918X22060102
Kurkin, M. I., Telegin, A. V., Agzamova, P. A., Bessonov, V. D., Neznakhin, D. S., & Baranov, N. V. (2022). A Model of the Electronic Structure of a FeRh Alloy Undergoing an Antferromagnetic–Ferromagnetic Phase Transition. Physics of Metals and Metallography, 123(6), 543-551. https://doi.org/10.1134/S0031918X22060102 0031-918X Final All Open Access; Hybrid Gold Open Access https://link.springer.com/content/pdf/10.1134/S0031918X22060102.pdf https://link.springer.com/content/pdf/10.1134/S0031918X22060102.pdf http://elar.urfu.ru/handle/10995/131405 10.1134/S0031918X22060102 85138290510 000853051700001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Pleiades Publishing
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| Источник |
Physics of Metals and Metallography
Physics of Metals and Metallography |
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