Lattice dynamical properties of MnTe, HgTe and their mixed semiconductor MnxHg1−xTe

In the present paper, the phonon dispersion relations, phonon density of states and Debye characteristics of mixed semiconductor Mn x Hg 1−x Te and the end members MnTe and HgTe using three-body shell model were studied. The model involves 11 disposable parameters and incorporates the effect of the...

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Bibliographic Details
Published in:Bulletin of materials science 2015-12, Vol.38 (7), p.1765-1769
Main Author: KUSHWAHA, A K
Format: Article
Language:English
Subjects:
Acoustics
Alloys
Chemistry and Materials Science
Crystals
Engineering
Materials Science
Optics
Phonons
Semiconductors
Online Access:Get full text
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Summary:In the present paper, the phonon dispersion relations, phonon density of states and Debye characteristics of mixed semiconductor Mn x Hg 1−x Te and the end members MnTe and HgTe using three-body shell model were studied. The model involves 11 disposable parameters and incorporates the effect of the short-range repulsive interactions up to and including the second nearest neighbours, in addition to the long-range Coulombic interactions in the framework of the rigid-shell model with both the ions polarizable. The comparisons of the theoretical results with the available experimental results were in good agreement.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-015-1040-7