Phase stability and magnetic properties of Ni50Mn50-xInx Heusler-type alloys

被引：61

作者：

Miyamoto, T. ^{[1
]}

Ito, W. ^{[1
]}

Umetsu, R. Y. ^{[1
]}

Kainuma, R. ^{[1
]}

Kanomata, T. ^{[2
]}

Ishida, K. ^{[3
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Tohoku Gakuin Univ, Fac Engn, Tagajo, Miyagi 9808537, Japan

[3] Tohoku Univ, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

SCRIPTA MATERIALIA | 2010年 / 62卷 / 03期

关键词：

Order-disorder transformation; Curie temperature; Magnetic moment; NiMnIn; SHAPE-MEMORY ALLOYS; NI; TRANSFORMATIONS;

D O I：

10.1016/j.scriptamat.2009.10.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The order-disorder transformation and the magnetic properties of Heusler-type Ni50Mn50-xInx ternary alloys were investigated. The B2/L2(1) order-disorder transformation temperatures are detected at about 800-1100 K. In the alloys with the L2(1) structure, while the spontaneous magnetization at 4.2 K monotonically decreases with increasing x, the Curie temperature is almost constant with x <= 25 and decreases linearly with x > 25. This unique behavior is qualitatively explained by the concept of local magnetic moment of Mn atoms. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：151 / 154

页数：4

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