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http://hdl.handle.net/1783.1/2372
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| Title: | Experimental and theoretical investigation of single Cu, Ag and Au atoms adsorbed on Si(111)-7×7 |
| Authors: | Zhang, Chun
Chen, Gang
Wang, Kedong
Yang, Hongwei
Su, Tao
Chan, Che-Ting
Loy, Michael M.
Xiao, Xudong |
| Keywords: | Elemental semiconductors
Silicon
Adsorbed layers
Silver
Copper
Gold
Scanning tunnelling microscopy
Ab initio calculations
Adsorption
Dangling bonds
Surface reconstruction |
| Issue Date: | 5-May-2005 |
| Citation: | Physical review letters, v. 94, p. 176104, 2005 |
| Abstract: | Using scanning tunneling microscopy and first principles calculations, the adsorption sites of single Cu, Ag and Au atoms on the Si(111)-7×7 surface have been systematically investigated and identified. Despite of the monovalence, these atoms were found to adsorb at high coordination sites, seeking to saturate the maximum number of dangling bonds. The stable adsorption sites were further observed to be distinctly different in the faulted and unfaulted half unit cells, showing an asymmetry that has never been observed for many other adsorbates. |
| Rights: | Phys. Rev. Lett. © copyright (2005) American Physical Society. The Journal's web site is located at http://prl.aps.org/ |
| URI: | http://hdl.handle.net/1783.1/2372 |
| Appears in Collections: | PHYS Journal/Magazine Articles
INST Journal/Magazine Articles
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| AdsorptionPRLrev2.pdf | pre-published version | 335Kb | Adobe PDF | View/Open |
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