English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62797/95867 (66%)
造访人次 : 3747124      在线人数 : 521
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/987654321/58311


    题名: X-ray absorption spectroscopy investigation of the electronic structure of superconducting FeSex single crystals
    作者: Chen, C. L.;Rao, S. M.;Dong, C. L.;Chen, J. L.;Huang, T. W.;Mok, B. H.;Ling, M. C.;Wang, W. C.;Chang, C. L.;Chan, T. S.;Lee, J. F.;Guo, J. H.;Wu, M. K.
    贡献者: 淡江大學物理學系
    日期: 2011-02
    上传时间: 2011-09-30 22:03:04 (UTC+8)
    出版者: Les Ulis: E D P Sciences
    摘要: X-ray absorption spectroscopy (XAS) Fe K-edge spectra of the FeSex (x=1–0.8) single crystals cleaved in situ under vacuum reveal characteristic Fe 4sp states and a lattice distortion. The Se K-edge spectra point to a strong Fe 3d-Se 4p hybridization giving rise to itinerant charge carriers. A formal charge of ~1.8+ for Fe and ~2.2− for Se was evaluated from these spectra in the FeSex (x=0.88). The charge balance between Fe and Se is assigned to itinerant electrons located in the Fe-Se hybridization bond. As x decreases the 4p hole count increases and a crystal structure distortion is observed that in turn causes the Fe separation in the ab-plane change from 4p orbital to varying (modulating) coordination. Powder X-ray diffraction (XRD) measurements also show a slight increase in lattice parameters as x decreases (increasing Se deficiency).
    關聯: Europhysics Letters 93(4), 47003(5pages)
    DOI: 10.1209/0295-5075/93/47003
    显示于类别:[物理學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    0295-5075_93(4)p47003.pdf959KbAdobe PDF462检视/开启
    indext.html959KbAdobe PDF400检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

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