Enhanced magnetocaloric effect and magnetic properties in Ni47Mn40-xFexIn13 (x=1, 2) Heusler alloy

被引：12
|
作者：
Arumugam, S. [1 ]
Sivaprakash, P. [1 ]
Muthu, S. Esakki [1 ,2 ]
Kumar, D. M. Raj [3 ]
Raja, M. Manivel [3 ]
Manikandan, K. [1 ]
Kannan, M. [1 ]
机构：
[1] Bharathidasan Univ, Ctr High Pressure Res, Sch Phys, Tiruchirappalli 620024, Tamil Nadu, India
[2] Karpagam Acad Higher Educ, Dept Phys, Coimbatore 641021, Tamil Nadu, India
[3] Def Met Res Lab, Hyderabad 500058, India
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 465卷
关键词：
Heusler alloy; Magnetic transition; Magnetocaloric effect; MARTENSITIC TRANSITION; ROOM-TEMPERATURE; MN; FE;
D O I：
10.1016/j.jmmm.2018.06.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the effect of Fe on the martensitic transitions in Ni47Mn40-xFexIn13 (x = 1 and 2) alloys and associated magnetocaloric effect. Structural and magnetic transitions are observed in x = 1 and 2 alloys. The martensitic transition shifts to low temperature with the increase of Fe concentration. The maximum positive entropy change (Delta S-M) with quite large magnitude of 22 Jkg(-1)K(-1) (x = 1) and 51.2 Jkg(-1)K(-1) (x = 2) are observed for a field change of 50 kOe. Substitution of Fe enhances the magnetization as well as increases the Delta S-M more than a twice in the x = 2 system.
引用
收藏
页码：566 / 568
页数：3
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