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Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure

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Main Authors: Y., Al-Douri, Ali, Hussain Reshak
Format: Article
Language:English
Published: Springer-Verlag 2011
Subjects:
Hydrostatic pressure
Optical properties
Engel-Vosko GGA
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13229
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spelling my.unimap-132292011-07-19T08:19:34Z Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure Y., Al-Douri Ali, Hussain Reshak Hydrostatic pressure Optical properties Engel-Vosko GGA Link to publisher's homepage at http://www.springerlink.com The hydrostatic pressure dependence of the principal energy gaps and of the optical properties of GaX (X = P, As and Sb) has been calculated using the full potential-linearized augmented plane wave (FP-LAPW) method. The generalized gradient approximation (GGA) for the exchange and correlation potential is applied. Also, we have used the Engel-Vosko GGA formalism, which optimizes the corresponding potential for band-structure and the optical properties calculations. Structural properties such as equilibrium lattice constants, the bulk modulus, and its pressure derivatives were calculated for GaP, GaAs, and GaSb in the zinc-blende structure (ZB). We have found that the results of the structural properties calculations are in agreement with those of ab initio and experimental data. In general, the pressure dependence of the principal energy gaps is compared to other values. The same is for the pressure coefficient. However, for the same structure, the comparison of our results with those of experimental and theoretical calculations shows good agreement. On the other hand, the effect of the applied pressure is clearly seen in the optical properties especially near the energy transition regions. 2011-07-19T08:19:34Z 2011-07-19T08:19:34Z 2011 Article Applied Physics A: Materials Science and Processing, 2011, Pages 1-9 0947-8396 http://www.springerlink.com/content/rl1245627w873384/ http://hdl.handle.net/123456789/13229 10.1007/s00339-011-6400-6 en Springer-Verlag
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Hydrostatic pressure
Optical properties
Engel-Vosko GGA
spellingShingle Hydrostatic pressure
Optical properties
Engel-Vosko GGA
Y., Al-Douri
Ali, Hussain Reshak
Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
description Link to publisher's homepage at http://www.springerlink.com
format Article
author Y., Al-Douri
Ali, Hussain Reshak
author_facet Y., Al-Douri
Ali, Hussain Reshak
author_sort Y., Al-Douri
title Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
title_short Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
title_full Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
title_fullStr Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
title_full_unstemmed Calculated optical properties of GaX (X=P, As, Sb) under hydrostatic pressure
title_sort calculated optical properties of gax (x=p, as, sb) under hydrostatic pressure
publisher Springer-Verlag
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13229
_version_ 1643790810441842688
score 13.223943

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