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|Title: ||Intermixing of intrabasin and interbasin diffusion of a single Ag atom on Si(111)-7(7 X 7)|
|Authors: ||Wang, Kedong|
Loy, Michael M.
|Keywords: ||Ag atoms|
Scanning tunneling microscopy
|Issue Date: ||31-Dec-2008 |
|Citation: ||Physical review letters, v. 101, 266107, 2008|
|Abstract: ||Using scanning tunneling microscopy, we studied the diffusion of single Ag atoms within the Si(111)-7(7 X 7) unit cell. A striking difference was observed in the time-dependent tunneling current spectra for Ag atoms moving in the unfaulted and faulted half unit cells, with a dual-time characteristic in the former but a single time in the latter. Our observations demonstrate the importance of the stacking fault in affecting the interaction between Ag atoms and the Si(111)-7(7 X 7)surface and can be understood in terms of an asymmetric interplay between intrabasin and interbasin diffusion.|
|Rights: ||Physical Review Letters © Copyright 2008 American Physical Society. The Journal's web site is located at http://prl.aps.org|
|Appears in Collections:||PHYS Journal/Magazine Articles|
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