Knowledge Management System of Institute of Theoretical Physics, CAS
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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| First-Principles Calculations of the Electronic Structure of Tetragonal alpha-FeTe and alpha-FeSe Crystals: Evidence for a Bicollinear Antiferromagnetic Order | |
| Source Publication | PHYSICAL REVIEW LETTERS
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| Keyword | Superconductivity Phase |
| Abstract | 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. |
| 2009 | |
| ISSN | 0031-9007 |
| Volume | 102Issue:17Pages:- |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | National Natural Science Foundation of China; National Program for Basic Research of MOST, China ; National Natural Science Foundation of China; National Program for Basic Research of MOST, China ; National Natural Science Foundation of China; National Program for Basic Research of MOST, China ; National Natural Science Foundation of China; National Program for Basic Research of MOST, China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/5338 |
| Collection | SCI期刊论文 |
| Corresponding Author | Ma, FJ , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China |
| Recommended Citation 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):-. |
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