English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 60868/93650 (65%)
造访人次 : 1151413      在线人数 : 22
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/117393

    题名: Coupling of spin and orbital excitations in the iron-based superconductor FeSe0.5Te0.5
    作者: Lee, S.-H.;Xu, Guangyong;Ku, W.;Wen, J. S.;Lee, C. C.;Katayama, N.;Xu, Z. J.;Ji, S.;Lin, Z. W.;Gu, G. D.;Yang, H.-B.;Johnson, P. D.;Pan, Z.-H.;Valla, T.;Fujita, M.;Sato, T. J.;Chang, S.;Yamada, K.;Tranquada, J. M.
    日期: 2010-06-14
    上传时间: 2019-10-15 12:11:21 (UTC+8)
    摘要: We present a combined analysis of neutron scattering and photoemission measurements on superconducting FeSe0.5Te0.5. The low-energy magnetic excitations disperse only in the direction transverse to the characteristic wave vector (12,0,0) whereas the electronic Fermi surface near (12,0,0) appears to consist of four incommensurate pockets. While the spin resonance occurs at an incommensurate wave vector compatible with nesting, neither spin-wave nor Fermi-surface-nesting models can describe the magnetic dispersion. We propose that a coupling of spin and orbital correlations is key to explaining this behavior. If correct, it follows that these nematic fluctuations are involved in the resonance and could be relevant to the pairing mechanism.
    關聯: Phys. Rev. B 81(22), 220502(R)
    DOI: 10.1103/PhysRevB.81.220502
    显示于类别:[物理學系暨研究所] 期刊論文


    档案 描述 大小格式浏览次数
    Coupling of spin and orbital excitations in the iron-based superconductor FeSe0.5Te0.5.pdf352KbAdobe PDF1检视/开启



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈