淡江大學機構典藏:Item 987654321/25428
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/25428


    Title: X-ray absorption study of YBa2−xLaxCu3Oy
    Authors: Hsieh, C.H.;Chang, C.N.;Lee, S.B.;Kao, H.-C.I.;Chin, C.H.
    Contributors: 淡江大學化學學系
    Keywords: A. High-Tc superconductors;B. Chemical synthesis;C. X-ray scattering;D. Electronic states (localized);E. Synchrotron radiation
    Date: 2000-10-31
    Issue Date: 2009-12-01
    Publisher: Kidlington: Pergamon
    Abstract: 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.
    Relation: Solid State Communications 116(9), pp.501-506
    DOI: 10.1016/S0038-1098(00)00360-4
    Appears in Collections:[化學學系暨研究所] 期刊論文

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