MANIFESTATION OF NEAR-SURFACE LOCALIZED EXCITONS IN SPECTRA OF DIFFUSE REFLECTION OF LIGHT

Authors
MADRIGALMELCHOR J PEREZRODRIGUEZ F SILVACASTILLO A AZUCENACOYOTECATL H
Citation
J. Madrigalmelchor et al., MANIFESTATION OF NEAR-SURFACE LOCALIZED EXCITONS IN SPECTRA OF DIFFUSE REFLECTION OF LIGHT, Physics of the solid state, 40(5), 1998, pp. 796-797
Citations number
3
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
40
Issue
5
Year of publication
1998
Pages
796 - 797
Database
ISI
SICI code
1063-7834(1998)40:5<796:MONLEI>2.0.ZU;2-B
Abstract
The interaction of excitons with rough surfaces and its effect on ligh t scattering spectra were investigated theoretically. We have employed a model for the excitonic surface potential based upon the generalize d Morse potential, taking into account its random fluctuations produce d by the surface roughness. Applying first-order perturbation theory, we calculate the doss section of light scattering from a rough GaAs su rface and analyze its frequency dependence in the presence of an extri nsic surface-potential well with excitonic bound states. (C) 1998 Amer ican Institute of Physics.