PHOTOELECTRON BAND-STRUCTURE OF INP(110)-SB MONOLAYERS

被引：8
|
作者：
MCGOVERN, IT
WHITTLE, R
ZAHN, DRT
MULLER, C
NOWAK, C
CAFOLLA, A
BRAUN, W
机构：
[1] TECH UNIV BERLIN,INST FESTKORPERPHYS,W-1000 BERLIN 12,GERMANY
[2] UNIV WALES COLL CARDIFF,DEPT PHYS,CARDIFF CF1 3TH,WALES
[3] BESSY,W-1000 BERLIN 33,GERMANY
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1991年 / 3卷
关键词：
D O I：
10.1088/0953-8984/3/S/057
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The electronic bandstructure of an ordered 1 x 1 overlayer of Sb on InP(110) has been investigated by angle-resolved photoelectron spectroscopy using synchrotron radiation. The experimental energy dispersion of the features in the spectra has been mapped along high-symmetry directions in the surface Brillouin zone. An analysis based on a number of criteria is employed to distinguish surface-related features and these are compared with a 'tight-binding, total energy minimization' calculation based on a zig-zag chain model of Sb on the InP(110) surface. Two bands near the valence band maximum are found to be in reasonable agreement with predicted states with a bonding character associated with the adsorption on anion and cation sites. The nature of two further bands at higher binding energy is discussed.
引用
收藏
页码：S367 / S372
页数：6
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