Low field induced giant magnetocaloric effect in TmGa compound

被引：90

作者：

Mo, Zhao-Jun ^{[1
,2
]}

Shen, Jun ^{[1
]}

Yan, Li-Qin ^{[3
,4
]}

Tang, Cheng-Chun ^{[2
]}

Lin, Jing ^{[2
]}

Wu, Jian-Feng ^{[1
]}

Sun, Ji-Rong ^{[3
,4
]}

Wang, Li-Chen ^{[3
,4
]}

Zheng, Xin-Qi ^{[3
,4
]}

Shen, Bao-Gen ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing, Peoples R China

[2] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin, Peoples R China

[3] Chinese Acad Sci, State Key Lab Magnetism, Beijing Natl Lab Condensed Matter, Beijing, Peoples R China

[4] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期

基金：

中国国家自然科学基金;

关键词：

MAGNETIC ENTROPY CHANGE; ROOM-TEMPERATURE; MAGNETORESISTANCE; TRANSITION;

D O I：

10.1063/1.4816729

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic properties and magnetocaloric effect in TmGa compound are investigated. TmGa exhibits two successive magnetic transitions: ferromagnetic-antiferromagnetic at T-FA = 12 K and antiferromagnetic-paramagnetic transition at T-N = 15 K. Under field changes of 1 and 2 T, giant reversible values of magnetic entropy change (12.9 and 20.6 J/kg K) and large values of refrigerant capacity (69 and 149 J/kg) are observed, respectively. Additionally, the maximal values of adiabatic temperature change are 3.2 and 5 K for field changes of 1 and 2 T, respectively. The TmGa compound with excellent magnetocaloric effect is expected to have effective applications in low temperature magnetic refrigeration. (C) 2013 AIP Publishing LLC.

引用

页数：4

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