Large rotating magnetocaloric effect in ErAlO3 single crystal

X. Q. Zhang; Y. D. Wu; Y. Ma; Q. Y. Dong; Y. J. Ke; Z. H. Cheng

doi:10.1063/1.4974915

AIP Advances (May 2017)

Large rotating magnetocaloric effect in ErAlO3 single crystal

X. Q. Zhang,
Y. D. Wu,
Y. Ma,
Q. Y. Dong,
Y. J. Ke,
Z. H. Cheng

Affiliations

X. Q. Zhang: State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Y. D. Wu: State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Y. Ma: State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Q. Y. Dong: Center for Condensed Matter & Beijing Key Laboratory of Metamaterials and Devices, Department of Physics, Capital Normal University, Beijing 100048, China
Y. J. Ke: State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Z. H. Cheng: State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

DOI: https://doi.org/10.1063/1.4974915
Journal volume & issue: Vol. 7, no. 5
pp. 056418 – 056418-6

Abstract

Read online

Magnetic and magnetocaloric properties of ErAlO3 single crystal were investigated. Magnetization of ErAlO3 shows obvious anisotropy when magnetic field is applied along the a, b and c axes, which leads to large anisotropic magnetic entropy change. In particular, large rotating field entropy change from the b to c axis within the bc plane is obtained and reaches 9.7 J/kg K at 14 K in a field of 5 T. This suggests the possibility of using ErAlO3 single crystal for magnetic refrigerators by rotating its magnetization vector rather than moving it in and out of the magnet.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

About the journal