The phase diagrams of Ni–Mn–Ga alloys in the magnetic field
The phase diagrams of Ni–Mn–Ga alloys in the magnetic field
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DOI：
10.1016/j.jmmm.2007.01.014
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发表时间：
2007-06
影响因子：
2.7
通讯作者：
V. Buchel'nikov;S. Taskaev;M. Zagrebin;D. Ermakov;V. Koledov;V. Shavrov;T. Takagi
中科院分区：
文献类型：
--
作者：
V. Buchel'nikov;S. Taskaev;M. Zagrebin;D. Ermakov;V. Koledov;V. Shavrov;T. Takagi
借助Ginzburg-Landau 理论，对Heusler 合金Ni-Mn-Ga 的温度-磁场相图进行了理论研究。讨论了磁弹性常数和弹性模量参数对相图的影响。结果表明，随着唯象参数组合的确定，相变的临界磁场出现。借助现代磁场源，可以在实验中实现临界磁场的理论预测值。
With the help of the Ginzburg–Landau theory the temperature–magnetic field phase diagrams of Heusler alloys Ni–Mn–Ga are theoretically investigated. The influence of the parameters of the magnetoelastic constants and elastic moduli on the phase diagrams are discussed. It is shown that with the determined combination of the phenomenological parameters, the critical magnetic field for the phase transition appears. The theoretically predicted value of the critical magnetic field is possible to be achieved in the experiment with the help of modern magnetic field sources.