DC CURRENT-DEPENDENT FACETING OF VICINAL SI(111)

Authors
RAMSTAD MJ BIRGENEAU RJ BLUM KI NOH DY WELLS BO YOUNG MJ
Citation
Mj. Ramstad et al., DC CURRENT-DEPENDENT FACETING OF VICINAL SI(111), Europhysics letters, 24(8), 1993, pp. 653-658
Citations number
15
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
24
Issue
8
Year of publication
1993
Pages
653 - 658
Database
ISI
SICI code
0295-5075(1993)24:8<653:DCFOVS>2.0.ZU;2-P
Abstract
We have studied the step structure of a vicinal Si(111) surface heated by st d.c. current between 1100 K and 1570 K in a synchrotron X-ray s cattering experiment. Above 1275 K, a reversible faceting transformati on is observed by switching current direction. On faceting the surface transforms from uniform well-ordered steps to extended (111) facets t ogether with extremely disordered step regions. The current direction for which uniform and well-ordered steps are stable reverses above 150 0 K.