First-order magnetic and structural phase transitions in Fe1+ySexTe1-x
文献类型：期刊论文
| 作者 | Li, SL ; de la Cruz, C ; Huang, Q ; Chen, Y ; Lynn, JW ; Hu, JP ; Huang, YL ; Hsu, FC ; Yeh, KW ; Wu, MK ; Dai, PC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2009 |
| 卷号 | 79期号:5 |
| 关键词 | SUPERCONDUCTIVITY DIAGRAM SYSTEMS FE2TE3 METAL TE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Li, SL (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| 中文摘要 | We use bulk magnetic susceptibility, electronic specific heat, and neutron scattering to study structural and magnetic phase transitions in Fe1+ySexTe1-x. Fe1.068Te exhibits a first-order phase transition near 67 K with a tetragonal-to-monoclinic structural transition and simultaneously develops a collinear antiferromagnetic (AF) order responsible for the entropy change across the transition. Systematic studies of the FeSe1-xTex system reveal that the AF structure and lattice distortion in these materials are different from those of FeAs-based pnictides. These results call into question the conclusions of present density-functional calculations, where FeSe1-xTex and FeAs-based pnictides are expected to have similar Fermi surfaces and therefore the same spin-density wave AF order. |
| 收录类别 | SCI |
| 资助信息 | U.S. NSF [DMR-0756568, PHY-0603759]; U.S. DOE [DE-FG02-05ER46202]; Division of Scientific User Facilities |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57844]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, SL,de la Cruz, C,Huang, Q,et al. First-order magnetic and structural phase transitions in Fe1+ySexTe1-x[J]. PHYSICAL REVIEW B,2009,79(5). |
| APA | Li, SL.,de la Cruz, C.,Huang, Q.,Chen, Y.,Lynn, JW.,...&Dai, PC.(2009).First-order magnetic and structural phase transitions in Fe1+ySexTe1-x.PHYSICAL REVIEW B,79(5). |
| MLA | Li, SL,et al."First-order magnetic and structural phase transitions in Fe1+ySexTe1-x".PHYSICAL REVIEW B 79.5(2009). |
入库方式： OAI收割
来源：物理研究所
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