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
收藏
页码：74765 / 74768
页数：4
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