Electronic structure and possible martensitic transformation in Mn2NiGe and Ni2MnGe
文献类型：期刊论文
| 作者 | Luo, HZ ; Meng, FB ; Liu, GD ; Liu, HY ; Jia, PZ ; Liu, EK ; Wang, WH ; Wu, GH |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2013 |
| 卷号 | 38页码:139 |
| 关键词 | Magnetic intermetallics Magnetic properties Martensitic transformations Ab-initio calculations |
| ISSN号 | 0966-9795 |
| 通讯作者 | Luo, HZ (reprint author), Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China. |
| 中文摘要 | The electronic structure and magnetism of Heusler alloys Mn2NiGe and Ni2MnGe have been studied by first-principles calculations. The possible non-modulated tetragonal martensitic transformation in them has been predicted. For both Mn2NiGe and Ni2MnGe, the tetragonal martensitic phase is lower in energy compared with the cubic austenitic phase. In Ni2MnGe, the martensitic transformation follows the conservation of volume. But in Mn2NiGe, a small contraction of the martensitic cell volume is predicted. The energy difference Delta E between the martensitic and austenitic phase is -8 meV/cell in Ni2MnGe and -80 meV/cell in Mn2NiGe, so it is more likely to observe martensitic transformation in Mn2NiGe or Heusler alloys with similar compositions. Ni2MnGe is found to be a ferromagnet, while Mn2NiGe is a ferrimagnet in which the Mn spin moments are in antiparallel coupling. (c) 2013 Elsevier Ltd. All rights reserved. |
| 资助信息 | National Natural Science Foundation of China [50901028, 50901027]; Natural Science Foundation of Hebei [E2012202009] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56952]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Luo, HZ,Meng, FB,Liu, GD,et al. Electronic structure and possible martensitic transformation in Mn2NiGe and Ni2MnGe[J]. INTERMETALLICS,2013,38:139. |
| APA | Luo, HZ.,Meng, FB.,Liu, GD.,Liu, HY.,Jia, PZ.,...&Wu, GH.(2013).Electronic structure and possible martensitic transformation in Mn2NiGe and Ni2MnGe.INTERMETALLICS,38,139. |
| MLA | Luo, HZ,et al."Electronic structure and possible martensitic transformation in Mn2NiGe and Ni2MnGe".INTERMETALLICS 38(2013):139. |
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来源：物理研究所
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