Giant low field magnetocaloric effect and field-induced metamagnetic transition in TmZn

被引：122

作者：

Li, Lingwei ^{[1
,2
]}

Yuan, Ye ^{[3
]}

Zhang, Yikun ^{[1
]}

Namiki, Takahiro ^{[4
]}

Nishimura, Katsuhiko ^{[4
]}

Poettgen, Rainer ^{[2
]}

Zhou, Shengqiang ^{[3
]}

机构：

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

[2] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

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

[4] Toyama Univ, Grad Sch Sci & Engn, Toyama 9308555, Japan

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 13期

基金：

中国国家自然科学基金;

关键词：

MAGNETIC REFRIGERATION; ALLOYS;

D O I：

10.1063/1.4932058

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic properties and the magnetocaloric effect (MCE) in TmZn have been studied by magnetization and heat capacity measurements. The TmZn compound exhibits a ferromagnetic state below a Curie temperature of T-C = 8.4K and processes a field-induced metamagnetic phase transition around and above T-C. A giant reversible MCE was observed in TmZn. For a field change of 0-5 T, the maximum values of magnetic entropy change (-Delta S-M(max)) and adiabatic temperature change (Delta T-ad(max)) are 26.9 J/kg K and 8.6 K, the corresponding values of relative cooling power and refrigerant capacity are 269 and 214 J/kg, respectively. Particularly, the values of -Delta S-M(max) reach 11.8 and 19.6 J/kg K for a low field change of 0-1 and 0-2 T, respectively. The present results indicate that TmZn could be a promising candidate for low temperature and low field magnetic refrigeration. (C) 2015 AIP Publishing LLC.

引用

页数：5

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