2 REACTION CHANNELS DIRECTLY OBSERVED FOR ATOMIC-HYDROGEN ON THE SI(111)-7X7 SURFACE

被引:90
作者
MORTENSEN, K
CHEN, DM
BEDROSSIAN, PJ
GOLOVCHENKO, JA
BESENBACHER, F
机构
[1] AARHUS UNIV,INST PHYS,DK-8000 AARHUS,DENMARK
[2] ROWLAND INST SCI INC,CAMBRIDGE,MA 02142
[3] HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138
来源
PHYSICAL REVIEW B | 1991年 / 43卷 / 02期
关键词
D O I
10.1103/PhysRevB.43.1816
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using scanning tunneling microscopy and spectroscopy, we have investigated the reaction of atomic hydrogen with the Si(111)7x7 reconstructed surface. A simple picture evolves in which the reaction proceeds concurrently along two channels: a direct binding of the hydrogen atoms to the existing dangling bonds of the surface, and a slower removal of the uppermost Si layer and binding of the hydrogen atoms to the created dangling bonds of the next layer.
引用
收藏
页码:1816 / 1819
页数:4
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