PbSe(100) surface electronic states studied by surface differential reflectivity

Authors :: Fabio Ronci
Carlo Ottaviani
Bogdan J. Kowalski
A. Cricenti
Andrzej Szczerbakow
B. A. Orlowski
Stefano Colonna
Source :: Physica status solidi. C, Current topics in solid state physics, info:cnr-pdr/source/autori:Colonna S., Ronci F., Ottaviani C., Szczerbakow A., Kowalski B.J., Orlowski B.A., Cricenti A./titolo:PbSe(100) Surface electronic States Studied by Surface Differential Reflectivity/doi:10.1002%2Fpssc.200303835/rivista:Physica status solidi. C, Current topics in solid state physics (Print)/anno:2003/pagina_da:3007/pagina_a:3011/intervallo_pagine:3007–3011/volume:0
Publication Year :: 2003
Publisher :: Wiley, 2003.
Abstract: Using Surface Differential Reflectivity (SDR) we have studied the optical properties of a PbSe(100) surface obtained by cleaving a PbSe sample in ultra-high-vacuum environment. SDR showed the existence of a gap of approximately 1.6 eV. The derived surface dielectric function showed, in the energy range of the present study (1.2–3.6 eV), three optical transitions observed at energies of 1.59, 2.01 and 2.39 eV. By putting together angle resolved photoemission data and theoretical calculations, these transitions have been, tentatively, assigned to different points in the surface Brillouin zone. (© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Subjects :: Brillouin zone
Surface (mathematics)
Range (particle radiation)
Crystallography
Chemistry
Dielectric function
Differential reflectivity
Molecular physics
Electronic states

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