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First-Principles Calculations of the Electronic Structure of Tetragonal alpha-FeTe and alpha-FeSe Crystals: Evidence for a Bicollinear Antiferromagnetic Order
文献类型：期刊论文
| 作者 | Ma, Fengjie; Ji, Wei; Hu, Jiangping; Lu, Zhong-Yi; Xiang, Tao ; Ma, FJ , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
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| 刊名 | PHYSICAL REVIEW LETTERS
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| 出版日期 | 2009 |
| 卷号 | 102期号:17页码:- |
| 关键词 | Superconductivity Phase |
| ISSN号 | 0031-9007 |
| 英文摘要 | By the first-principles electronic structure calculations, we find that the ground state of PbO-type tetragonal alpha-FeTe is in a bicollinear antiferromagnetic order, in which the Fe local moments (similar to 2.5 mu(B)) align ferromagnetically along a diagonal direction and antiferromagnetically along the other diagonal direction on the Fe square lattice. This novel bicollinear order results from the interplay among the nearest, the next-nearest, and the next-next-nearest neighbor superexchange interactions, mediated by Te 5p band. In contrast, the ground state of alpha-FeSe is in a collinear antiferromagnetic order, similar to those in LaFeAsO and BaFe(2)As(2). This finding sheds new light on the origin of magnetic ordering in Fe-based superconductors. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000265948300053 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5338]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Ma, FJ , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Fengjie,Ji, Wei,Hu, Jiangping,et al. First-Principles Calculations of the Electronic Structure of Tetragonal alpha-FeTe and alpha-FeSe Crystals: Evidence for a Bicollinear Antiferromagnetic Order[J]. PHYSICAL REVIEW LETTERS,2009,102(17):-. |
| APA | Ma, Fengjie,Ji, Wei,Hu, Jiangping,Lu, Zhong-Yi,Xiang, Tao,&Ma, FJ , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.(2009).First-Principles Calculations of the Electronic Structure of Tetragonal alpha-FeTe and alpha-FeSe Crystals: Evidence for a Bicollinear Antiferromagnetic Order.PHYSICAL REVIEW LETTERS,102(17),-. |
| MLA | Ma, Fengjie,et al."First-Principles Calculations of the Electronic Structure of Tetragonal alpha-FeTe and alpha-FeSe Crystals: Evidence for a Bicollinear Antiferromagnetic Order".PHYSICAL REVIEW LETTERS 102.17(2009):-. |
入库方式： OAI收割
来源：理论物理研究所
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