Ab Initio Lattice Dynamics and Thermodynamics of MgS and Related II-VI Semiconductors in Zincblende Structure

Abstract:

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The lattice dynamics and thermodynamic properties of MgS and related II-VI compounds are studied by the first-principles linear-response function calculation in the framework of densityfunctional perturbation theory. The ab initio structural, mechanic and dielectric parameters of these phases are presented. From the theoretical phonon dispersion relations, the linear thermal expansion coefficient and its temperature dependence are calculated. The differences in structural and thermodynamic behaviors of these compounds are explained from their phonon dispersion characters.

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Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1907-1910

DOI:

10.4028/www.scientific.net/MSF.561-565.1907

Citation:

S. Q. Wang "Ab Initio Lattice Dynamics and Thermodynamics of MgS and Related II-VI Semiconductors in Zincblende Structure", Materials Science Forum, Vols. 561-565, pp. 1907-1910, 2007

Online since:

October 2007

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$35.00

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