Low-temperature magnetostriction and distortions in the rare-earth Laves phases

verfasst von

G. Politova, M. Ganin, T. Kaminskaya, A. Mikhailova, B. Nacke, A. Filimonov, G. Burkhanov

Abstract

The effects of partial substitution of dysprosium in Tb_0.2Dy_0.8Co₂ by terbium and gadolinium on the structure and magnetic properties have been studied. Two compositions, Tb_0.3Dy_0.7Co₂ and Tb_0.2Dy_0.7Gd_0.1Co₂ have been synthesized. Their crystal structure, in contrast to the structure of the original compound, has both tetragonal distortions and rhombohedral distortions at lower temperatures. Anomalies of magnetostriction and magnetocaloric effect near the observed magnetic phase transitions have been studied. The sign-alternating temperature dependences of the longitudinal and transverse magnetostrictions associated with various types of crystal structure distortions of the alloys are revealed.

Organisationseinheit(en)

Institut für Elektroprozesstechnik

Externe Organisation(en)

Russian Academy of Sciences (RAS)
St. Petersburg State Polytechnical University
Lomonosov Moscow State University

Typ

Konferenzaufsatz in Fachzeitschrift

Journal

Journal of Physics: Conference Series

Band

1389

ISSN

1742-6588

Publikationsdatum

28.11.2019

Publikationsstatus

Elektronisch veröffentlicht (E-Pub)

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik und Astronomie (insg.)

Elektronische Version(en)

https://doi.org/10.1088/1742-6596/1389/1/012097 (Zugang: Offen)
https://doi.org/10.15488/9396 (Zugang: Offen)