Influence of hydrogenation on magnetic phase transition in Er_{2}Fe_{14}B: Fundamentals and potentialities

Issue title: Second INABIO Symposium, 2005

Article type: Research Article

Authors: Tereshina, E.A.^{a; *}

Affiliations: [a] Department of Physics, Lomonosov Moscow State University, Leninskie Gory, Moscow, 119992, Russia

Correspondence: [*] Address for correspondence: Department of Physics, Lomonosov Moscow State University, Leninskie Gory, Moscow, 119992, Russia. Tel.: +7(095) 7799049; Fax: +7(095) 9328820; E-mail: janety@mail.ru

Abstract: In this work the results of the systematic study of the hydrogen effect on Curie temperature (T_{C}) and spin-reorientation temperature (T_{SR}) in Er_{2}Fe_{14}B were reported. It was established that the hydrogenation leads to an increase of T_{ C} and T_{SR}. The magnetization of Er_{2}Fe_{14}BH_{x} (0 ⩽ x ⩽ 2.5) compounds measured in the magnetic field of 0.05 T applied along the c-axis has been shown to rise substantially with temperature growth near the magnetic phase transition region. The longitudinal magnetostriction of Er_{2}Fe_{14}BH_{x} also increases at the spin-reorientation temperature. Er_{2}Fe_{14}B compound and its hydrides were potential candidates for application as working elements of various thermomagnetic sensors.

DOI: 10.3233/JAE-2006-741

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 23, no. 3-4, pp. 245-250, 2006