Scanning tunneling microscopy barrier-height imaging of shockley dislocations on a Au(111) reconstructed surface

Citation
S. Kurokawa et al., Scanning tunneling microscopy barrier-height imaging of shockley dislocations on a Au(111) reconstructed surface, JPN J A P 1, 40(6B), 2001, pp. 4277-4280
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Volume
40
Issue
6B
Year of publication
2001
Pages
4277 - 4280
Database
ISI
SICI code
0021-4922(200106)40:6B<4277:STMBIO>2.0.ZU;2-N
Abstract
We have carried out a scanning tunneling microscopy barrier-height (STM-BM) imaging of a reconstructed Au(111) surface and found that the BH locally d ecreases on herringbone reconstruction ridges, or Shockley dislocations. Th e observed lowering of the BH can be explained by the formation of an elect ric dipole at a dislocation core, which was theoretically predicted by Cott rell et al. (Philos. Mag. 44 (1953) 1064) in their theory on the electric i nteraction between solutes and dislocations.