Giant low field magnetocaloric effect in soft ferromagnetic ErRuSi

被引：48

作者：

Gupta, Sachin B. ^{[1
]}

Suresh, K. G. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 02期

关键词：

MAGNETIC REFRIGERATION; TRANSITIONS;

D O I：

10.1063/1.4775690

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic and magnetocaloric properties of the intermetallic compound ErRuSi have been investigated. The compound shows ferromagnetic ordering with Curie temperature of 8K. The magnetic transition is found to be first order in nature. The maximum entropy change and refrigerant capacity are found to be 21.2 J/kg K and 416 J/kg for a field change of 50 kOe. The low field (20 kOe) entropy change is also found to be quite large (15.2 J/kg K). Additionally, the compound shows very little thermal and field hysteresis, fulfilling the required condition for a good magnetic refrigerant in the low temperature regime. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4775690]

引用

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