Отправить статью по E-mail Thermal Expansion of Co2MAl (M = Ti, V, Cr, Mn, Fe, Ni) Band Ferromagnets
- Авторы: Kourov N.I.1, Marchenkov V.V.1,2, Kazantsev V.A.1, Perevozchikova Y.A.1
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Учреждения:
- Mikheev Institute of Metal Physics, Ural Branch
- Yeltsin Ural Federal University
- Выпуск: Том 60, № 3 (2018)
- Страницы: 622-625
- Раздел: Thermal Properties
- URL: https://bakhtiniada.ru/1063-7834/article/view/202441
- DOI: https://doi.org/10.1134/S1063783418030149
- ID: 202441
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Аннотация
The thermal expansion coefficient (TEC) of Co2MAl (M = Ti, V, Cr, Mn, Fe, Ni) band ferromagnets is measured in the temperature interval of 80–900 K. The magnetic-fluctuation contribution αm, sf(T) = αm(T) + αsf(T) to TEC comprised of negative Stoner αm(T) and positive spin-fluctuation αsf(T) contributions is presented. It is assumed that the contribution of αm(T) component is proportional to the square of spontaneous magnetization. The contribution of αsf(T) is stipulated by the effects of inducing local magnetic moments by spin fluctuations and is proportional to the Pauli susceptibility.
Об авторах
N. Kourov
Mikheev Institute of Metal Physics, Ural Branch
Автор, ответственный за переписку.
Email: kourov@imp.uran.ru
Россия, Yekaterinburg, 620108
V. Marchenkov
Mikheev Institute of Metal Physics, Ural Branch; Yeltsin Ural Federal University
Email: kourov@imp.uran.ru
Россия, Yekaterinburg, 620108; Yekaterinburg, 620002
V. Kazantsev
Mikheev Institute of Metal Physics, Ural Branch
Email: kourov@imp.uran.ru
Россия, Yekaterinburg, 620108
Yu. Perevozchikova
Mikheev Institute of Metal Physics, Ural Branch
Email: kourov@imp.uran.ru
Россия, Yekaterinburg, 620108
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