THEORETICAL AND EXPERIMENTAL OPTICAL SPECTROSCOPY STUDY OF HYDROGEN ADSORPTION AT SI(111)-(7X7)

Authors
NOGUEZ C BEITIA C PREYSS W SHKREBTII AI ROY M BORENSZTEIN Y DELSOLE R
Citation
C. Noguez et al., THEORETICAL AND EXPERIMENTAL OPTICAL SPECTROSCOPY STUDY OF HYDROGEN ADSORPTION AT SI(111)-(7X7), Physical review letters, 76(26), 1996, pp. 4923-4926
Citations number
30
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
26
Year of publication
1996
Pages
4923 - 4926
Database
ISI
SICI code
0031-9007(1996)76:26<4923:TAEOSS>2.0.ZU;2-4
Abstract
The combination of in situ real-time surface differential reflectivity (SDR) spectroscopy and microscopic calculations has been used for the first time to investigate gas adsorption on a Si surface. The optical signatures of some microscopic structural units of Si(111)-(7 x 7) ha ve been identified. The development of the corresponding features in t he SDR spectra upon the amount of H exposure allowed us to demonstrate the occurrence of two different mechanisms in the hydrogenation and t o determine their relative kinetics.