Large magnetocaloric effect in a wide temperature range induced by two successive magnetic phase transitions in Ho2Cu2Cd compound

被引：64

作者：

Yi, Yalin ^{[1
,2
]}

Li, Lingwei ^{[1
,2
,3
]}

Su, Kunpeng ^{[3
]}

Qi, Yang ^{[2
]}

Huo, Dexuan ^{[3
]}

机构：

[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Inst Mat Phys & Chem, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China

[3] Hangzhou Dianzi Univ, Inst Mat Phys, Hangzhou 310018, Zhejiang, Peoples R China

来源：

INTERMETALLICS | 2017年 / 80卷

基金：

中国国家自然科学基金;

关键词：

Functional alloys (magnetic; electrical; biomedical); Magnetic properties; RE; HO; ER; REFRIGERATION; RE2CU2CD; TM;

D O I：

10.1016/j.intermet.2016.10.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The magnetic and magnetocaloric properties of Ho2Cu2Cd compound have been studied. The compound reveals two successive magnetic phase transitions at 30 K and 15 K which are corresponding to the paramagnetic to ferromagnetic transition and a spin reorientation, respectively. Two successive magnetic transitions in Ho2Cu2Cd resulting two peaks in the temperature dependence of magnetic entropy change curves, -Delta S-M (T). Two peaks are partly overlapped and induced a large MCE in a wide temperature range, i.e., large refrigerant capacity (RC) and relative cooling power (RCP). For a magnetic field change of 0-7 T, the values of maximal -Delta S-M, RC and RCP are 25.1 J/kg K, 527 J/kg and 732 J/kg for Ho2Cu2Cd, respectively. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：22 / 25

页数：4

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