First principles prediction of the elastic, electronic, and optical properties of Sb 2S 3 and Sb 2Se 3 compounds
Date
2012Source Title
Solid State Sciences
Print ISSN
12932558
Volume
14
Issue
8
Pages
1211 - 1220
Language
English
Type
ArticleItem Usage Stats
127
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304
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Abstract
We have performed a first principles study of structural, mechanical, electronic, and optical properties of orthorhombic Sb 2S 3 and Sb 2Se 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 second-order elastic constants have been calculated, and the other related quantities such as the Young's modulus, shear modulus, Poisson's ratio, anisotropy factor, sound velocities, Debye temperature, and hardness have also been estimated in the present work. The linear photon-energy dependent dielectric functions and some optical properties such as the energy-loss function, the effective number of valence electrons and the effective optical dielectric constant are calculated. Our structural estimation and some other results are in agreement with the available experimental and theoretical data. © 2012 Elsevier Masson SAS. All rights reserved.
Keywords
Ab initio calculationElectronic structure
Mechanical properties
Optical properties
Ab initio calculations
Anisotropy factor
Dielectric functions
First-principles study
Optical dielectric constant
Poisson's ratio
Pressure derivatives
Second orders
Structural estimation
Valence electron
Young's Modulus
Debye temperature
Elastic moduli
Electronic structure
Local density approximation
Mechanical properties
Optical properties
Semiconducting selenium compounds
Antimony compounds
Permalink
http://hdl.handle.net/11693/21375Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.solidstatesciences.2012.06.003Collections
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