Fermi Surface Topology and Low-Lying Quasiparticle Dynamics of Parent Fe1+xTe/Se Superconductor
文献类型:期刊论文
作者 | Xia, Y ; Qian, D ; Wray, L ; Hsieh, D ; Chen, GF ; Luo, JL ; Wang, NL ; Hasan, MZ |
刊名 | PHYSICAL REVIEW LETTERS
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出版日期 | 2009 |
卷号 | 103期号:3 |
ISSN号 | 0031-9007 |
通讯作者 | Hasan, MZ: Princeton Univ, Dept Phys, Joseph Henry Labs Phys, Princeton, NJ 08544 USA. |
中文摘要 | We report the first photoemission study of Fe1+xTe-the host compound of the newly discovered iron-chalcogenide superconductors (maximum T-c similar to 27 K). Our results reveal a pair of nearly electron-hole compensated Fermi pockets, strong Fermi velocity renormalization, and an absence of a spin-density-wave gap. A shadow hole pocket is observed at the "X" point of the Brillouin zone which is consistent with a long-range ordered magnetostructural ground state. No signature of Fermi surface nesting instability associated with Q=(pi/2,pi/2) is observed. Our results collectively reveal that the Fe1+xTe series is different from the undoped phases of the high T-c pnictides and likely harbor an unusual mechanism for superconductivity and magnetic order. |
收录类别 | SCI |
资助信息 | U. S. DOE- BES [DE-FG02-05ER46200]; NSFC; CAS China |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/38081] ![]() |
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 | Xia, Y,Qian, D,Wray, L,et al. Fermi Surface Topology and Low-Lying Quasiparticle Dynamics of Parent Fe1+xTe/Se Superconductor[J]. PHYSICAL REVIEW LETTERS,2009,103(3). |
APA | Xia, Y.,Qian, D.,Wray, L.,Hsieh, D.,Chen, GF.,...&Hasan, MZ.(2009).Fermi Surface Topology and Low-Lying Quasiparticle Dynamics of Parent Fe1+xTe/Se Superconductor.PHYSICAL REVIEW LETTERS,103(3). |
MLA | Xia, Y,et al."Fermi Surface Topology and Low-Lying Quasiparticle Dynamics of Parent Fe1+xTe/Se Superconductor".PHYSICAL REVIEW LETTERS 103.3(2009). |
入库方式: OAI收割
来源:物理研究所
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