The electronic structure and spin polarization of Co 2 Mn 0.75 (Gd, Eu) 0.25 Z (Z=Si, Ge, Ga, Al) quaternary Heusler alloys
The electronic structure and spin polarization of Co 2 Mn 0.75 (Gd, Eu) 0.25 Z (Z=Si, Ge, Ga, Al) quaternary Heusler alloys
复制标题
Co 2 Mn 0.75 (Gd, Eu) 0.25 Z (Z=Si, Ge, Ga, Al)四元Heusler合金的电子结构和自旋极化
DOI:
10.1016/j.jmmm.2015.10.101
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Saadi Berri
中科院分区:
文献类型:
--
作者:
Saadi Berri
A first-principles approach is used to study the electronic and magnetic properties of Co2Mn0.75(Gd, Eu)0.25Z(Z=Si, Ge, Ga, Al) quaternary Heusler alloys. The investigation was done using the (FP-LAPW) method where the exchange-correlation potential was calculated with the frame of GGA-WC. At ambient conditions our calculated results of band structures reveal that for Co2Mn0.75(Gd, Eu)0.25Z(Z=Si, Ge) has a half-metallic (HM) band structure profile showing 100% spin polarization at the Fermi level. In contrast, Co2Mn0.75(Gd, Eu)0.25Z(Z=Ga, Al) alloys are found to be metallic. Finally, the half metallic compounds found in some structures of this series might be useful in spintronic devices.
影响因子:
3.7
作者:
Wang, WH;Przybylski, M;Kirschner, J
通讯作者:
Kirschner, J