Ab-initio calculations of the optical properties of the Si(113)3x2ADI surface

Details Ab-initio calculations of the optical properties of the Si(113)3x2ADI surface Ab-initio calculations of the optical properties of the Si(113)3x2ADI surface

2006-11-05

arxiv.org/abs/cond-mat/0611124v1

Phys. Rev. B 75, 155331 (2007)

Physics

Condensed Matter

Materials Science

10 pages, 10 figures

Scientific paper

10.1103/PhysRevB.75.155331

We investigated the stable silicon (113) surface with a 3x2ADI reconstruction by ab-initio methods. The ground state properties have been obtained using the density-functional theory. We present the dispersion of the electronic band structure, where the surface bands have been distinguished from the projected bulk bands by calculating their localization in the slab. The optical spectra, here the reflectance anisotropy (RAS), have been obtained within the independent particle random phase approximation. We identified surface features in the spectra tracing them back to the responsible electronic states and, studied their localization in the slab. A comparison with available experimental data for the band structure and the RAS shows a good agreement.

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