【摘 要】
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The reconstruction process of the Si(111) × R30°-Ag surface is studied by using a scanning tunnelling microscope at 78 K. By applying a strong interaction b
【机 构】
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Structure Research Laboratory University of Science and Technology of China,Hefei,230026“,”Structure
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The reconstruction process of the Si(111) × R30°-Ag surface is studied by using a scanning tunnelling microscope at 78 K. By applying a strong interaction between the tip and the surface, a tip-induced reconstruction corresponding to the mergence of two Si(111) × R30°-Ag domains is observed. Based on the inequiv alent 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) × R30°-Ag anti-phase boundary disappears and changes to the IET structure.
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