English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 58286/91808 (63%)
造訪人次 : 13807393      線上人數 : 66
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    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/987654321/97404


    題名: Valence band electronic structure of Nd1−xYxMnO3 using X-ray absorption, photoemission and GGA + U calculations
    作者: Padmanabhan Balasubramaniana;Harikrishnan S. Nair;Tsai, H. M.;S. Bhattacharjee;Liu, M. T.;Ruchika Yadav;chiou, J. W.;Lin, H. J.;Pi, T. W.;Tsai, M. H.;Suja Elizabeth;Pao, C. W.;Wang, B. Y.;Chuang, C. H.;Pong, W. F.
    貢獻者: 淡江大學物理學系
    關鍵詞: X-ray absorption;Photoemission;Density of states;Strongly correlated systems
    日期: 2013-08-01
    上傳時間: 2014-03-19 16:59:19 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: The electronic structures of Nd1−xYxMnO3 (x = 0–0.5) were studied using X-ray absorption near-edge structure (XANES) at the Mn L3,2- and O K-edge along with valence-band photoemission spectroscopy (VB-PES). The systematic increase in white-line intensity of the Mn L3,2-edge with doping, suggests a decrease in the occupancy of Mn 3d orbitals. The O K-edge XANES shows a depletion of unoccupied states above the Fermi energy. The changes in the O K-edge spectra due to doping reflects an increase in the Jahn–Teller distortion. The VB-PES shows broadening of the features associated with Mn 3d and O 2p hybridized states and the shift of these features to a slightly higher binding energy in agreement with our GGA + U calculations. The system shows a net shift of the occupied and unoccupied states away from the Fermi energy with doping. The shift in theoretical site-projected density of states of x = 0.5 composition with respect to x = 0 suggest a subtle change from a charge transfer to Mott–Hubbard type insulator.
    關聯: Journal of Electron Spectroscopy and Related Phenomena 189, pp.51–55
    DOI: 10.1016/j.elspec.2013.07.001
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML355檢視/開啟
    Valence band electronic structure of Nd1−xYxMnO3 using X-ray absorption, photoemission and GGA + U calculations.pdf1133KbAdobe PDF0檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

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