KINETICS OF OXYGEN-INDUCED FACETING OF VICINAL AG(110)

Authors
OZCOMERT JS PAI WW BARTELT NC REUTTROBEY JE
Citation
Js. Ozcomert et al., KINETICS OF OXYGEN-INDUCED FACETING OF VICINAL AG(110), Physical review letters, 72(2), 1994, pp. 258-261
Citations number
24
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
2
Year of publication
1994
Pages
258 - 261
Database
ISI
SICI code
0031-9007(1994)72:2<258:KOOFOV>2.0.ZU;2-I
Abstract
The oxygen-induced breakup of vicinal Ag(110) surfaces into (110) face ts and step bunches is measured with scanning tunneling microscopy. Fa ceting transitions are recorded in real time at room temperature for t wo surface orientations. A vicinal Ag(110) surface misoriented by 2-de grees towards [001] facets via the growth of isolated nuclei. Step-pos ition fluctuations of increasing magnitude are observed prior to facet ing, revealing a critical terrace width of approximately 100 angstrom. In contrast, oxygen exposure causes Ag(110) misoriented by 2-degrees towards [331BAR] to facet spontaneously with no evident nucleation bar rier.