THEORETICAL CALCULATIONS OF THE SCANNING-TUNNELING-MICROSCOPY IMAGES OF THE SI(111)-SQUARE-ROOT-3X-SQUARE-ROOT-3-AG SURFACE

被引：102
|
作者：
WATANABE, S
AONO, M
TSUKADA, M
机构：
[1] INST PHYS & CHEM RES, SURFACE & INTERFACE LAB, WAKO, SAITAMA 351, JAPAN
[2] UNIV TOKYO, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN
来源：
PHYSICAL REVIEW B | 1991年 / 44卷 / 15期
关键词：
D O I：
10.1103/PhysRevB.44.8330
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The scanning-tunneling-microscopy (STM) images of the Si(111) square-root 3 X square-root 3-Ag surface have been calculated from first principles for a structural model of the surface recently proposed, or the modified honeycomb-chained-trimer model, which is consistent with reported photoemission and inverse-photoemission spectra. The results show excellent agreement with reported STM images. Each bright spot corresponding to a protrusion in the reported STM images represents neither Ag nor Si atoms but rather corresponds to the center of each surface Ag trimer.
引用
收藏
页码：8330 / 8333
页数：4
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