HYDROGEN-INDUCED RECONSTRUCTION OF A W(110) SURFACE STUDIED BY ANGLE-RESOLVED PHOTOEMISSION SPECTROSCOPY

被引：1
|
作者：
AIURA, Y
YANASHIMA, H
FUKUTANI, H
KATO, H
SAKISAKA, Y
MARUYAMA, T
EDAMOTO, K
机构：
[1] UNIV TSUKUBA,INST PHYS,TSUKUBA,IBARAKI 305,JAPAN
[2] NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY,TSUKUBA,IBARAKI 305,JAPAN
[3] KYOTO UNIV,FAC SCI,DEPT CHEM,KYOTO 606,JAPAN
[4] TOKYO INST TECHNOL,FAC SCI,DEPT CHEM,TOKYO 152,JAPAN
来源：
SURFACE SCIENCE | 1993年 / 283卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(93)91001-6
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：
We have observed changes in the electronic structure of a W(110) surface caused by the hydrogen-induced reconstruction using angle-resolved photoemission spectroscopy. For the unreconstructed H/W(110) surface, a number of hydrogen-induced states are observed, and some of them are found to be in the projected bulk band gap. As W(110) undergoes the surface reconstruction induced by further hydrogen adsorption, one of those states is rapidly quenched, while others simply shift downward in energy by a fraction of an electron volt. To understand the surface reconstruction mechanism for this system, the surface electronic states before and after the surface reconstruction are calculated using the ''simple'' tight-binding method. The driving mechanism for the hydrogen-induced surface reconstruction is briefly discussed.
引用
收藏
页码：344 / 348
页数：5
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