Optical properties and electronic band structure of topological insulators on A2 5B36 compound based

Date
2012
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Source Title
Proceedings of ISAF-ECAPD-PFM 2012
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Publisher
IEEE
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Language
English
Type
Conference Paper
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Abstract

We have performed a first principles study of structural, electronic, and optical properties of rhombohedral Sb 2Te 3 and Bi 2Te 3 compounds using the density functional theory within the local density approximation. The lattice parameters, bulk modulus, and its pressure derivatives of these compounds have been obtained. The linear photon-energy dependent dielectric functions and some optical properties such as the energy-loss function, the effective number of valance electrons and the effective optical dielectric constant are calculated and presented in the study © 2012 IEEE.

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Keywords
Ab initio calculations, Dielectric functions, Electronic band structure, First-principles study, Optical dielectric constant, Pressure derivatives, Topological insulators, Bismuth compounds, Dielectric materials, Electronic structure, Local density approximation, Optical properties, Antimony compounds
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Published Version (Please cite this version)