FIRST-PRINCIPLES STUDY ON ELECTRONIC-STRUCTURE OF THE (001) SURFACE OF SRTIO3

被引:99
作者
KIMURA, S [1 ]
YAMAUCHI, J [1 ]
TSUKADA, M [1 ]
WATANABE, S [1 ]
机构
[1] RES DEV CORP JAPAN,ERATO,AONO ATOMCRAFT PROJECT,ITABASHI KU,TOKYO 173,JAPAN
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 16期
关键词
D O I
10.1103/PhysRevB.51.11049
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electronic structures of SrTiO3 (001) surfaces are calculated by the use of self-consistent pseudopotential method with plane-wave basis. The effect of surface defects, which are introduced by removing a surface oxygen in a 1×1 or a 2 × 2 cell, are studied in detail. Levels induced by the defect appear in the bulk band-gap region. The wave funciton of the defect level is localized around surface Ti ion, forming the Ti(3d)-O vacancy complex. © 1995 The American Physical Society.
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页码:11049 / 11054
页数:6
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