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Phonons in Hg1-xCdxSe Crystalline Alloys.

Phonons in Hg1-xCdxSe Crystalline Alloys.

Authors :
Miranda, David A.
López R., S. A.
Romero, A. H.
Source :
AIP Conference Proceedings; Dec2013, Vol. 1566 Issue 1, p95-96, 2p
Publication Year :
2013

Abstract

Phonons vibrational frequencies for Hg<subscript>1-x</subscript>Cd<subscript>x</subscript>Se (x ≤ 0:5) crystalline alloys were theoretical and experimentally studied. Two simple expressions that summarize the optical modes behavior with composition were derived. Such that the behavior of the vibrational properties of II-VI and III-V semiconductors at the Γ point can be expressed as function of the product of the ionic charges (Z<subscript>1</subscript>Z<subscript>2</subscript>) and the nearest neighbor distance, d. A good agreement has been found between the observed and calculated values of the vibrational frequencies ν<subscript>LO</subscript> for the ternary Hg<subscript>1-x</subscript>Cd<subscript>x</subscript>Se alloys. Furthermore, our calculations suggest a non typical behavior of the acoustic vibrational modes similar to the one reported for HgSe. Besides, we also report the theoretical dependence of the phonon dispersion relation as function of composition. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
1566
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
97117659
Full Text :
https://doi.org/10.1063/1.4848302