Half metallicity through wide range of lattice constants in Heusler alloys Co2MnGa1-xGex: First-principles calculations
文献类型：期刊论文
| 作者 | H. M. Huang ; S. J. Luo ; K. L. Yao |
| 刊名 | Physica Status Solidi B-Basic Solid State Physics
 |
| 出版日期 | 2012 |
| 卷号 | 249期号:4页码:840-846 |
| 关键词 | first-principles calculations half-metallicity Heusler alloys ab-initio si compound ge spintronics prediction mn fe ga al |
| ISSN号 | 0370-1972 |
| 中文摘要 | The electronic and magnetic properties of Heusler alloys Co2MnGa1-xGex (x?=?0.00, 0.25, 0.50, 0.75, and 1.00) have been investigated using first-principles density functional theory within the generalized gradient approximation (GGA) scheme. The calculations reveal that with increasing x the lattice constants slightly decrease. When x?=?0.5, alloys are half-metallic (HM) ferromagnets and the total magnetic moments obey Slater-Pauling rule quite well. Mn atoms show high spin states due to the special sites in compounds. The ferromagnetic couplings are observed in Co2MnGa1-xGex alloys. The sensitivity of half-metallicity and the change of HM gap for specific lattice constants are also discussed in detail. Calculated results show the half-metallicity of Co2MnGa0.25Ge0.75 can be maintained in a wider lattice constant range. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60010]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. M. Huang,S. J. Luo,K. L. Yao. Half metallicity through wide range of lattice constants in Heusler alloys Co2MnGa1-xGex: First-principles calculations[J]. Physica Status Solidi B-Basic Solid State Physics,2012,249(4):840-846. |
| APA | H. M. Huang,S. J. Luo,&K. L. Yao.(2012).Half metallicity through wide range of lattice constants in Heusler alloys Co2MnGa1-xGex: First-principles calculations.Physica Status Solidi B-Basic Solid State Physics,249(4),840-846. |
| MLA | H. M. Huang,et al."Half metallicity through wide range of lattice constants in Heusler alloys Co2MnGa1-xGex: First-principles calculations".Physica Status Solidi B-Basic Solid State Physics 249.4(2012):840-846. |
入库方式： OAI收割
来源：金属研究所
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