Electronic and optical properties of ZnCr2Se4 as explored by first principles and crystal field calculations

Optical, structural, electronic and elastic properties of ZnCr2Se4 have been theoretically modelled using two different approaches: semi‐empirical model of crystal field and ab initio DFT‐based calculations. The former allows for calculations of electronic levels of six‐fold coordinated Cr3+ ions in...

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Veröffentlicht in:Physica status solidi. C 2011-09, Vol.8 (9), p.2585-2588
Hauptverfasser: Avram, Nicolae M., Brik, Mikhail G., Sildos, Ilmo
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Sildos, Ilmo
description Optical, structural, electronic and elastic properties of ZnCr2Se4 have been theoretically modelled using two different approaches: semi‐empirical model of crystal field and ab initio DFT‐based calculations. The former allows for calculations of electronic levels of six‐fold coordinated Cr3+ ions in a crystal field and direct comparison with experimental absorption spectra. The latter allows for analysis of the band structure, density of states, elastic properties and pressure effects for the considered compound. All obtained results are compared with corresponding experimental values; good agreement between the results of calculations and experimental data was demonstrated (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
doi_str_mv 10.1002/pssc.201084063
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subjects ab-initio calculations
absorption spectra
band structure
Band structure of solids
crystal field theory
Crystal structure
Crystals
Elastic constants
Electronics
Mathematical models
Optical properties
Solid state physics
title Electronic and optical properties of ZnCr2Se4 as explored by first principles and crystal field calculations
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