Surface-reconstruction-switched adsorbate photofragmentation dynamics - art. no. 056101

Authors
Camillone, N Khan, KA Yarmoff, JA Osgood, RM
Citation
N. Camillone et al., Surface-reconstruction-switched adsorbate photofragmentation dynamics - art. no. 056101, PHYS REV L, 8705(5), 2001, pp. 6101
Citations number
24
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8705
Issue
5
Year of publication
2001
Database
ISI
SICI code
0031-9007(20010730)8705:5<6101:SAPD-A>2.0.ZU;2-T
Abstract
Energy-resolved angular distributions of neutral fragments ejected during p hotoinduced electron transfer reaction of CH3Br on GaAs(100) exhibit three distinct methyl-radical ejection channels. These undergo marked changes whe n the termination is switched from the Ga-rich c(8 x 2) to the As-rich c(2 x 8). Our observations are consistent with a strong adsorption-site depende nce of the dynamics.