Magnetic properties and giant reversible magnetocaloric effect in GdCoC2

被引：28

作者：

Meng, Lingjian ^{[1
,2
]}

Xu, Chi ^{[3
]}

Yuan, Ye ^{[3
]}

Qi, Yang ^{[2
]}

Zhou, Shengqiang ^{[3
]}

Li, Lingwei ^{[1
,2
]}

机构：

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

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

[3] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, Bautzner Landstr 400, D-01328 Dresden, Germany

来源：

RSC ADVANCES | 2016年 / 6卷 / 78期

基金：

中国国家自然科学基金;

关键词：

NEUTRON-DIFFRACTION; REFRIGERATION; TBCOC2; RCOC2; ER;

D O I：

10.1039/c6ra16486b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The crystal structure, magnetic properties and magnetocaloric effect (MCE) of GdCoC2 have been studied. The compound crystallizes in an orthorhombic CeNiC2-type structure which belongs to the Amm2 space group. A giant reversible MCE is observed in GdCoC2 accompanied by a second-order paramagnetic to ferromagnetic (PM-FM) phase transition around the Curie temperature similar to 15 K. For the magnetic field change of 0-5 T, the maximum values of the magnetic entropy change (-Delta S-M(max)), relative cooling power (RCP), and refrigerant capacity (RC) are 28.4 J kg(-1) K-1, 566 J kg(-1) and 369 J kg(-1), respectively. The present results indicate that GdCoC2 is a promising candidate for Low temperature magnetic refrigeration.

引用

页码：74765 / 74768

页数：4

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