The magnetocaloric effect in the vicinity of compensation temperature of ferrimagnetic DyCo 4 Al alloy

Shengcan Ma, Zhenchen Zhong (), Dunhui Wang (), Junming Luo, Jilin Xu, Youlin Huang, Yuhua Hou, Jun He, Qingqi Cao and Youwei Du

The European Physical Journal B: Condensed Matter and Complex Systems, 2013, vol. 86, issue 4, 1-4

Abstract: The magnetic and magnetocaloric properties in ferrimagnetic DyCo 4 Al alloy are investigated in the vicinity of compensation temperature. A compensation temperature closed to room temperature is observed due to the spin-offset. On both sides of compensation temperature, the magnetization presents the abrupt change. As a consequence, two successive positive and negative magnetic entropy change peaks are obtained for this alloy. The appreciable magnetic entropy change values with a very wide refrigerant temperature interval (~200 K) corresponding to the positive magnetic entropy change peak would make this alloy suitable to be used in a magnetic refrigerator. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Keywords: Solid State and Materials (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1140/epjb/e2013-30823-y

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