Tuning the giant inverse magnetocaloric effect in Mn2-xCrxSb compounds

被引：66

作者：

Caron, L. ^{[1
,2
]}

Miao, X. F. ^{[1
]}

Klaasse, J. C. P. ^{[3
]}

Gama, S. ^{[2
,4
]}

Bruck, E. ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Sci Appl, Fundamental Aspects Mat & Energy, NL-2629 JB Delft, Netherlands

[2] Univ Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

[3] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1098 XH Amsterdam, Netherlands

[4] Univ Estadual Sao Paulo Unifesp, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, Brazil

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

1ST-ORDER PHASE-TRANSITION; CR-MODIFIED MN2SB; MAGNETIZATION;

D O I：

10.1063/1.4821197

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Structural, magnetic, and magnetocaloric properties of Mn2-xCrxSb compounds have been studied. In these compounds, a first order magnetic phase transition from the ferrimagnetic to the antiferromagnetic state occurs with decreasing temperature, giving rise to giant inverse magnetocaloric effects that can be tuned over a wide temperature interval through changes in substitution concentration. Entropy changes as high as 7.5 J/kgK have been observed, and a composition independent entropy change is obtained for several different concentrations/working temperatures, making these compounds suitable candidates for a composite working material. (C) 2013 AIP Publishing LLC.

引用

页数：4

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