Atomic-scale stick-slip processes on Cu(111)

Citation
R. Bennewitz et al., Atomic-scale stick-slip processes on Cu(111), PHYS REV B, 60(16), 1999, pp. R11301-R11304
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
16
Year of publication
1999
Pages
R11301 - R11304
Database
ISI
SICI code
0163-1829(19991015)60:16<R11301:ASPOC>2.0.ZU;2-A
Abstract
Friction force microscopy experiments in ultrahigh vacuum allow the observa tion of atomic-scale stick-slip processes on Cu(111) surfaces. The lateral stiffness of the contact and the electrical characteristic of the junction are discussed. It is suggested that the tip is covered by copper forming a contact of a few atoms with the Cu(111) surface. The mean friction exhibits a clear dependence on the scan velocity. [S0163-1829(99)51140-5].