Magnetostriction and transformation of crystal structure of intermetallic compound NdCo2

Nikitin, S.A.; Karpenkov, D.Y.; Tereshina, I.S.; Pastushenkov, Y.G.; Palewski, T.; Cwik, J.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 июля 2013 г.

Авторы: Nikitin S.A., Karpenkov D.Yu, Tereshina I.S., Pastushenkov Yu G., Palewski T., Cwik J.
Журнал: Journal of Physics: Conference Series
Том: 303
Год издания: 2011
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 012023
DOI: 10.1088/1742-6596/303/1/012023
Аннотация: Ferromagnetic compound NdCo 2 has complex magnetic transformation, which are accompanied by changes of the crystal lattice. The purpose of this paper was the investigation of influence of these transformations on the field and temperature dependence of magnetostriction. It was found that near the Curie temperature T c = 98K, where the transition from cubic to tetragonal phase is observed, there is a maximum in the temperature dependence of the transverse magnetostriction λ ⊥(T) in the field B=4T. In this field λ ⊥ reaches high values of λ ⊥∼200.10 -6 at temperatures higher than T c. This shows that in this field, the tetragonal distortion and band magnetism of 3d-subsystem remain even at T>Tc. At T<42K λ ⊥ decreases in field B=0.5 T due to phase transition from tetragonal phase to orthorhombic. The curve λ ⊥ (H) at T = 10 K anomalies are observed. They are associated with the fact that under the action of the external field there are consistent transitions from orthorhombic phase to tetragonal and then to cubic. Thus, it was found that the compound NdCo 2 crystal structure is reconstructed with magnetic field.
Добавил в систему: Никитин Сергей Александрович

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Magnetostriction and transformation of crystal structure of intermetallic compound NdCo2статья

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