Author:
Liu Xin-Hao ,Lin Jing-Bo ,Liu Yan-Hui ,Jin Ying-Jiu ,
Abstract
Using the full-potential linearized augmented plane wave method within the generalized gradient approximation, we investigatete the electronic structures, magnetisms and half-metallicities of the full-Heusler X2YGa (X=Co, Fe, Ni; Y=V, Cr, Mn) alloys. It is found that the spin-orbit coupling has little effect on the electronic structures, magnetisms and half-metallicities of the full-Heusler X2YGa (X=Co, Fe, Ni; Y=V, Cr, Mn) alloys. Without spin-orbit coupling the Co2VGa,Co2CrGa,and Fe2CrGa alloys are half-metallic or nearly half-metallic ferromagnets. With including the spin-orbit coupling, the spin-polarizations are lowered by about 1%, thus they still remain high spin-polarizations. The Fe2MnGa, Co2MnGa, Ni2CrGa, and Ni2MnGa alloys are conventional ferromagnets, whereas the Fe2VGa and Ni2VGa alloys are paramagnets.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
5 articles.
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