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http://hdl.handle.net/1783.1/6135
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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
Chen, Gang
Zhang, Chun
Loy, Michael M.
Xiao, Xudong |
| Keywords: | Ag atoms
Intrabasin
Interbasin diffusion
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 |
| URI: | http://hdl.handle.net/1783.1/6135 |
| Appears in Collections: | PHYS Journal/Magazine Articles
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