INTERACTION BETWEEN SB AND BI ADSORBATES ON THE GAAS(110) SURFACE

Citation
P. Haier et al., INTERACTION BETWEEN SB AND BI ADSORBATES ON THE GAAS(110) SURFACE, Surface science, 399(2-3), 1998, pp. 264-269
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
ISSN journal
00396028
Volume
399
Issue
2-3
Year of publication
1998
Pages
264 - 269
Database
ISI
SICI code
0039-6028(1998)399:2-3<264:IBSABA>2.0.ZU;2-E
Abstract
The structure of GaAs(110) surfaces under the simultaneous presence of antimony and bismuth monolayer adsorbates was investigated by combini ng Raman scattering with low-energy electron diffraction and Auger spe ctroscopy. Raman spectroscopy from surface vibrations was used to prob e the bonding of the adsorbates with the GaAs surface. Both adsorbates form a well-ordered surface monolayer when present alone on the surfa ce. Independent of the order of deposition an Sb-covered surface alway s forms when both adsorbates are present simultaneously. The formation of an ordered monolayer containing both adsorbates does not take plac e due to the higher stability of the Sb-terminated as compared to the Bi-terminated surface. (C) 1998 Elsevier Science B.V.