Magnetic phase diagram of ferromagnetic shape memory alloys Ni2MnGa1-xFex
Magnetic phase diagram of ferromagnetic shape memory alloys Ni2MnGa1-xFex
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DOI：
10.1016/j.jallcom.2013.12.035
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发表时间：
2014-04
影响因子：
6.2
通讯作者：
Y. Hayasaka;S. Aoto;H. Date;T. Kanomata;T. Kanomata;Xiao Xu;R. Umetsu;M. Nagasako;T. Omori;R. Kainuma;T. Sakon;H. Nishihara;K. Ziebeck
中科院分区：
文献类型：
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作者：
Y. Hayasaka;S. Aoto;H. Date;T. Kanomata;T. Kanomata;Xiao Xu;R. Umetsu;M. Nagasako;T. Omori;R. Kainuma;T. Sakon;H. Nishihara;K. Ziebeck
对Ni 2 MnGa 1-xFex（0 × x ≤ 0.40）合金的磁导率和差示扫描量热法进行了测量.根据实验结果，确定了温度-浓度平面内的相图。该相图的特征与Ni 2+ xMn 1-xGa、Ni 2 Mn 1-xCuxGa和Ni 2 MnGa 1-xCux系相图的特征相似，均发生了顺磁奥氏体相（Para-A）和铁磁马氏体相（Ferro-M）之间的磁结构转变。此外，还报道了Ni 2 MnGa 1-xFex（0 <$x <$0.375）在5 K时单位磁矩μ s的浓度依赖性.
Permeability and differential scanning calorimetry measurements were carried out on Ni 2 MnGa 1-x Fe x (0⩽ x⩽ 0.40). On the basis of the experimental results, the phase diagram in the temperature–concentration plane was determined. The characteristics of the determined phase diagram are similar to those of the phase diagrams of Ni 2+ x Mn 1-x Ga, Ni 2 Mn 1-x Cu x Ga and Ni 2 MnGa 1-x Cu x systems, where the magnetostructural transition between the paramagnetic austenite phase (Para-A) and ferromagnetic martensite phase (Ferro-M) occurs. Furthermore, the concentration dependence of the magnetic moment per formula unit, μ s, at 5 K for Ni 2 MnGa 1-x Fe x (0⩽ x⩽ 0.375) is also reported.