Optical properties and electronic band structure of topological insulators (on A5 2B6 3 compound based)
Date
2013-09-20
Authors
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Ferroelectrics
Print ISSN
0015-0193
Electronic ISSN
1563-5112
Publisher
Taylor & Francis
Volume
448
Issue
1
Pages
29 - 41
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Series
Abstract
We have performed a first principles study of structural, electronic, and optical properties of rhombohedral Sb2Te3 and Bi 2Te3 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.