Anisotropic magnetocaloric effect in HoAlGa polycrystalline compound

Zhang Yan; Zheng Xinqi; Xiong JieFu; Zuo Shulan; Dong Qiaoyan; Zhao Tongyun; Shen Baogen

doi:10.1063/1.5007130

journal article·2018-05-01Open access

Anisotropic magnetocaloric effect in HoAlGa polycrystalline compound

Zhang Yan, Zheng Xinqi, Xiong JieFu, Zuo Shulan, Dong Qiaoyan, Zhao Tongyun, Shen Baogen

AIP Advances· Volume 8· Issue 5

Publisher page Open full text

Source abstract

Abstract

In this work, a nonnegligible anisotropic magnetocaloric effect (MCE) in HoAlGa polycrystalline compounds has been observed. With temperature increasing, the HoAlGa compound undergoes two kinds of magnetic transitions at 19 K and 31 K, respectively, the later has been recognized as an ordinary antiferromagnetic to paramagnetic (AFM-PM) transition. The -ΔS peak of HoAGa reaches 5.4 J/kg K and 1.5 J/kg K at 35 K along parallel and perpendicular texture directions respectively, for a field change of 0-5 T. The result indicates that the HoAlGa polycrystalline compounds with excellent anisotropic MCE can be expected to have effective magnetic refrigeration applications in low temperature range.

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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences 1 , Beijing, China

University of Chinese Academy of Sciences 3 , Beijing, China

School of Materials Science and Engineering, University of Science and Technology Beijing 2 , Beijing, China

Center for Condensed Matter & Beijing Key Laboratory of Metamaterials and Devices, Department of Physics, Capital Normal University 4 , Beijing, China

Funding

National Basic Research Program of China · The Key Program of the Chinese Academy of Sciences · The National Natural Sciences Foundation of China · The national Key Research and Development Program of China

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