English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 57978/91504 (63%)
造访人次 : 13697561      在线人数 : 37
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: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/111848


    题名: Correlation between p-type conductivity and electronic structure of Cr-deficient CuCr1−xO2 (x = 0--0.1)
    作者: Shashi B. Singh;L. T. Yang;Y. F. Wang;Y. C. Shao;C. W. Chiang;J. W. Chiou;K. T. Lin;S. C. Chen;B. Y. Wang;C. H. Chuang;D. C. Ling;W. F. Pong;M.-H. Tsai;H. M. Tsai;C. W. Pao;H. W. Shiu;C. H. Chen;H.-J. Lin;J. F. Lee;H. Yamane;N. Kosugi
    日期: 2012-12-07
    上传时间: 2017-10-26 02:10:13 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: The correlation between the p-type hole conduction and the electronic structures of Cr-deficient CuCr1−xO2
    (x = 0−0.1) compounds was investigated using O K-, Cu, and Cr L3,2-edge x-ray absorption near-edge structure
    (XANES), scanning photoelectron microscopy, and x-ray emission spectroscopy measurements. XANES spectra
    reveal a gradual increase in the Cu valence from Cu1+ to Cu2+ with increasing Cr deficiency x, whereas, the
    valence of Cr remains constant as Cr3+. These results indicate that the p-type conductivity in the CuCr1−xO2
    samples is enhanced by a Cu1+-O-Cu2+ rather than a Cr3+-Cr4+ or direct Cu1+-Cu2+ hole mechanism. Remarkable
    Cr-deficiency-induced changes in the densities of Cu 3d, Cu 3d-O 2p, and O 2p states at or near the valence-band
    maximum or the Fermi level were also observed. In addition, a crossover of conduction mechanism from thermally
    activated (TA) hopping to a combination of TA and Mott’s three-dimensional variable range hopping occurs
    around 250 K.
    關聯: Phys. Rev. B 86, 241103(R)
    DOI: 10.1103/PhysRevB.86.241103
    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
    Correlation between p-type conductivity and electronic structure of Cr-deficient CuCr1−xO2 (x = 0--0.1).pdf521KbAdobe PDF0检视/开启
    index.html0KbHTML95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