A change in the exchange integral due to the hydrogen atoms introduction into the crystal lattice of Terfenol-D

Авторы: Aleroev A.A., Tereshina I.S., Aleroeva T.A., Pankratov N.Yu, Nikitin S.A.
Журнал: Physics of the Solid State
Том: 66
Номер: 8
Год издания: 2024
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 1324
Последняя страница: 1328
DOI: 10.61011/PSS.2024.08.59055.156
Аннотация: The effect of hydrogenation on the structural and magnetic characteristics of the compound Tb0.3Dy0.7Fe2 (Terfenol-D) was investigated. A hydride Tb0.3Dy0.7Fe2H3 with a Curie temperature near room temperature and a magnetic compensation point at T=140 K was obtained. The main mechanisms responsible for both the change in the Curie temperature during hydrogenation and the appear of a noticeable volume magnetostriction near the Curie temperature were established. The change in the exchange integral upon the introduction of a fixed of hydrogen atoms (3 at.H/f.u.) into the crystal lattice of the Tb0.3Dy0.7Fe2 compound was calculated.
Добавил в систему: Панкратов Николай Юрьевич

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