Specific Features of the Magnetocaloric Effect in a Uniaxial Paramagnet with Kramers Ions


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The changes in magnetic entropy upon isothermal magnetization of a uniaxial paramagnet with Kramers ions (spin S = 3/2) and single-ion easy-plane anisotropy were studied at low temperatures. It was demonstrated that the magnetocaloric effect upon magnetization in the easy direction is considerably stronger than the one corresponding to magnetization in the hard direction (perpendicular to the easy plane). It was found that magnetization in the hard direction is accompanied by an anomalous increase in magnetic entropy in a finite interval of magnetic fields. A nonmonotonic dependence of entropy on the final magnetization field is produced as a result.

About the authors

E. E. Kokorina

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: kokorina@iep.uran.ru
Russian Federation, Ekaterinburg, 620016

M. V. Medvedev

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: medvedev@iep.uran.ru
Russian Federation, Ekaterinburg, 620016

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2019 Pleiades Publishing, Ltd.