Study of the magnetic phase transitions and magnetocaloric effect in Dy2Cu2In compound

Study of the magnetic phase transitions and magnetocaloric effect in Dy2Cu2In compound
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Dy2Cu2In化合物的磁相变和磁热效应研究

DOI:
10.1016/j.jallcom.2016.01.157
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发表时间:
2016-05
影响因子:
6.2
通讯作者:
Wilde Gerhard
Wilde Gerhard
中科院分区:
材料科学2区
文献类型:
--
作者:
Zhang Yikun;Xu Xiao;Yang Yang;Hou Long;Ren Zhongming;Li Xi;Wilde Gerhard

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The magnetic properties and magnetocaloric effect (MCE) in Dy2Cu2In compound have been investigated. Dy2Cu2In undergoes two magnetic phase transitions, a paramagnetic to ferromagnetic (FM) atTC∼ 49.5 K followed by a spin reorientation (SR) atTSR∼ 19.5 K. For a magnetic field change of 0–7 T, the maximum values of the magnetic entropy change (−ΔSMmax) are estimated to be 16.5 aroundTCand 6.7 J/kg K aroundTSRwith a large relative cooling power (RCP) value of 617 J/kg. The modified Arrott plots and universal curves of the rescaled ΔSMconfirmed that the magnetic phase transitions in Dy2Cu2In compound belongs the second order phase transitions. The present results may provide some clues to search for new magnetocaloric materials belonging toRE2T2Xsystem.
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