Surface versus crystal-termination effects in the optical properties of surfaces
Condensed Matter
2007-05-23 v1
Abstract
We prove, by realistic microscopic calculations within the sp^3s^* Tight Binding method for GaAs (110) and (100), that the surface optical properties are not influenced by long-range crystal termination effects, and hence that they can be consistently studied considering slabs of limited thickness (20 - 30 \AA). The origin of derivative-like and bulk-like lineshapes in Reflection Anisotropy Spectra is also discussed, analyzing the effects arising from possible surface-induced reduction, broadening, and shifting of the bulk spectrum near the surface.
Keywords
Cite
@article{arxiv.cond-mat/9906346,
title = {Surface versus crystal-termination effects in the optical properties of surfaces},
author = {Rodolfo Del Sole and Giovanni Onida},
journal= {arXiv preprint arXiv:cond-mat/9906346},
year = {2007}
}
Comments
10 figures. In press in Physical Review B, scheduled 15 Aug. 1999