Effect of Co on magnetic property and phase stability of Ni-Mn-Ga ferromagnetic shape memory alloys: A first-principles study
Effect of Co on magnetic property and phase stability of Ni-Mn-Ga ferromagnetic shape memory alloys: A first-principles study
复制标题
Co对Ni-Mn-Ga铁磁形状记忆合金磁性能和相稳定性的影响：第一性原理研究
DOI：
10.1088/1674-1056/19/10/107102
复制
发表时间：
2010
影响因子：
1.7
通讯作者：
Cai Wei
中科院分区：
文献类型：
--
作者：
Tan Chang-Long;Jiang Jiu-Xing;Tian Xiao-Hua;Cai Wei
The effect of Co content on magnetic property and phase stability of Ni50-xMn25Ga25Cox ferromagnetic shape memory alloys has been investigated using first-principles calculations. The total energy difference between paramagnetic and ferromagnetic state of austenite plays an important role in the magnetic transition. The high Curie temperature can be attributed to the stronger Co—Mn exchange interaction as compared to the Ni—Mn one. The phase stability of Ni50-xMn25Ga25Cox austenite increases with increasing Co content, which is discussed based on the electronic structure.
