共 21 条
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.
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页码:L931 / L936
页数:6
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