Phase transitions in the ferromagnetic alloys Ni2+xMn1-xGa

被引：35
|
作者：
Bozhko, AD [1 ]
Vasil'ev, AN
Khovailo, VV
Buchel'nikov, VD
Dikshtein, IE
Seletskii, SM
Shavrov, VG
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[2] Chelyabinsk State Univ, Chelyabinsk 454021, Russia
[3] Russian Acad Sci, Inst Radio Engn & Elect, Moscow 103907, Russia
来源：
JETP LETTERS | 1998年 / 67卷 / 03期
关键词：
D O I：
10.1134/1.567655
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The phase diagram of the cubic ferromagnetic shape-memory alloy Ni2+xMn1-xGa is constructed theoretically for the case when the Curie temperature is close to the structural transition temperature. This diagram agrees well with the experimental data obtained from resistance and magnetic susceptibility measurements. It is shown that the transition from the paramagnetic cubic phase to the ferromagnetic tetragonal phase can be second-order or first-order. (C) 1998 American Institute of Physics.
引用
收藏
页码：227 / 232
页数：6
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