出版日期：2000-10-31 00:00:00

著者：Hsieh, C.H.; Chang, C.N.; Lee, S.B.; Kao, H.-C.I.; Chin, C.H.

單位：淡江大學化學學系

出版者：Kidlington: Pergamon

著錄名稱、卷期、頁數：Solid State Communications 116(9), pp.501-506

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.

關鍵字：A. High-Tc superconductors; B. Chemical synthesis; C. X-ray scattering; D. Electronic states (localized); E. Synchrotron radiation

語言：en

ISSN：0038-1098

期刊性質：國外

收錄於：SCI

通訊作者：Chang, C.N.

國別：GBR

出版型式：紙本