English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49200/83641 (59%)
造訪人次 : 7096953      線上人數 : 37
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/987654321/27454


    題名: Kinetic energy driven superconductivity in the electron doped cobaltate NaxCoO2 · yH2O
    作者: Liu, Bin;Liang, Ying;Feng, Shi-ping;陳惟堯;Chen, Wei-yeu
    貢獻者: 淡江大學物理學系
    關鍵詞: Superconducting mechanism;Electron doped cobaltate;Cooper pairs
    日期: 2005-06-15
    上傳時間: 2009-12-31 10:09:51 (UTC+8)
    出版者: Chinese Physical Society/Institute of Theoretical Physics.
    摘要: Within the charge-spin separation fermion-spin theory, we show that the mechanism of superconductivity in the electron doped cobaltate NaxCoO2centerdotyH2O is ascribed to its kinetic energy. The dressed fermions interact occurring directly through the kinetic energy by exchanging magnetic excitations. This interaction leads to a net attractive force between dressed fermions, then the electron Cooper pairs originating from the dressed fermion pairing state are due to the charge-spin recombination, and their condensation reveals the superconducting ground state. The superconducting transition temperature is identical to the dressed fermion pair transition temperature, and is suppressed to a lower temperature due to the strong magnetic frustration. The optimal superconducting transition temperature occurs in the electron doping concentration δ≈0.29, and then decreases for both underdoped and overdoped regimes, in qualitative agreement with the experimental results.
    關聯: Communications in Theoretical Physics 43(6), pp.1127-1132
    DOI: 10.1088/0253-6102/43/6/034
    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
    0KbUnknown224檢視/開啟
    index.html0KbHTML31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