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Scanning Tunnelling Microscope Tip-Induced Reconstruction on
Si(111)√3 x√3 R30°-Ag Surface
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LI Bin1;ZENG Chang-Gan1;WANG Hai-Qian1,2;WANG Bing1;HOU Jian-Guo1,2 |
1Structure Research Laboratory and 2Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China, Hefei 230026
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Cite this article: |
LI Bin, ZENG Chang-Gan, WANG Hai-Qian et al 2001 Chin. Phys. Lett. 18 181-183 |
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Abstract The reconstruction process of the Si(111) √3 x√3 R30°-Ag surface is studied by using a scanning tunnelling microscope at 78K. By applying a strong interaction between the tip and the surface, a tip-induced reconstruction corresponding to the mergence of two Si(111) √3 x√3 R30°-Ag domains is observed. Based on the inequivalent trimers (IET) model, this reconstruction process is attributed to a transition between the clockwise and counterclockwise IET domains. With this transition, the honeycomb-chained-trimer Si(111) )√3 x√3 R30°-Ag anti-phase boundary disappears and changes to the IET structure.
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Keywords:
07.79.Cz
68.35.Bs
68.55.Jk
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Published: 01 February 2001
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