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Title: FP-APW + lo calculations of the elastic properties in zinc-blende III-P compounds under pressure effects
Authors: A., Bouhemadou
R., Khenata
M., Kharoubi
Yarub K.A, Al Douri
T., Seddik
Ali H., Reshak
Keywords: III-P compounds;FP-APW + lo;Elastic moduli;Pressure effect;Materials engineering;Elastic properties;Zinc
Issue Date: Apr-2009
Publisher: Elsevier B.V.
Citation: Computational Materials Science, vol.45 (2), 2009, pages 474-479
Abstract: The effect of high-pressures on the structural and elastic properties of XP zinc-blende compounds, with X = B, Al, Ga and In, has been investigated using the full-potential augmented plane wave plus local orbitals method within density functional theory. The bulk properties, including lattice constant, bulk modulus and its pressure derivative are obtained. The elastic constants and their pressure dependence are calculated using total energy variation with strain technique. We derived the bulk modulus, shear modulus, Young’s modulus and Poisson’s ratio for ideal polycrystalline XP aggregates. We estimated the Debye temperature of XP compounds from the average sound velocity. Our results are in reasonable agreement with the available theoretical and experimental data.
Description: Link to publisher's homepage at http://www.elsevier.com/wps/find/homepage.cws_home
URI: http://www.sciencedirect.com/science/journal/09270256
ISSN: 0927-0256
Appears in Collections:School of Microelectronic Engineering (Articles)

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