SURFACE-STATES ON CUBIC D-BAND SEMICONDUCTOR PYRITE (FES(2))

被引:143
作者
BRONOLD, M [1 ]
TOMM, Y [1 ]
JAEGERMANN, W [1 ]
机构
[1] HAHN MEITNER INST BERLIN GMBH,SOLARE ENERGET ABT,GLLENICKER STR 100,D-14109 BERLIN,GERMANY
关键词
D O I
10.1016/0039-6028(94)90230-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A model for the electronic structure of the (100) surface of the d-band semiconductor pyrite (FeS2) is presented based on ligand field theory. The existence of a new type of surface states at the valence band edge resulting from a symmetry reduction of the Fe coordination sphere is deduced. The model is able to explain the inversion layer observed on n-type crystals as well as surface core level shifts in S 2p photoemission spectra.
引用
收藏
页码:L931 / L936
页数:6
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