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    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/987654321/25428

    題名: X-ray absorption study of YBa2−xLaxCu3Oy
    作者: Hsieh, C.H.;Chang, C.N.;Lee, S.B.;Kao, H.-C.I.;Chin, C.H.
    貢獻者: 淡江大學化學學系
    關鍵詞: A. High-Tc superconductors;B. Chemical synthesis;C. X-ray scattering;D. Electronic states (localized);E. Synchrotron radiation
    日期: 2000-10-31
    上傳時間: 2009-12-01
    出版者: Kidlington: Pergamon
    摘要: The O-1s and Cu-2p3/2 X-ray absorption near-edge spectra of YBa2−xLaxCu3Oy have been measured by using synchrotron radiation. The total number of holes, as derived from the spectral data, decreases linearly with the increase of La content, x. The holes of O(4) are altered slightly, as compared to the decrease in the holes of the CuO2 planes, by the La3+ substitution of Ba2+. The main effect of La in YBa2−xLaxCu3Oy is to change the electronic structure in the CuO2 planes so that the concentration of the hole states is reduced.
    關聯: Solid State Communications 116(9), pp.501-506
    DOI: 10.1016/S0038-1098(00)00360-4
    顯示於類別:[化學學系暨研究所] 期刊論文


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