ANALOGY BETWEEN THE CU K-EDGE XAS AND 2P XPS SPECTRA OF THE SQUARE-PLANAR CUPRATES - ROLE OF THE PHOTOELECTRON AND ITS SYMMETRY

被引:3
|
作者
TOLENTINO, H
MEDARDE, M
FONTAINE, A
BAUDELET, F
DARTYGE, E
机构
[1] MENC,CEA,CNRS,LURE,BAT 209D,F-91405 ORSAY,FRANCE
[2] CNPQ,LNLS,BR-13081 CAMPINAS,SP,BRAZIL
关键词
D O I
10.1016/0368-2048(93)80013-C
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
The multichannel approach of XPS and XAS is now well documented. The polarisation-dependent Cu K-edge spectra of the square planar cuprates account for an anisotropic weighting of the two well screened and poorly screened channels. The R-2 dependence of the energy position of the 4p antibonding transitions is viewed specifically for a host wide band of p symmetry, for which the dispersion is approximately parabolic.
引用
收藏
页码:167 / 184
页数:18
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