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Title: Optical investigations using ultra-soft pseudopotential calculations of Si0.5Ge0.5 alloy
Authors: Y., Al-Douri
Y. P., Feng
A. C. H., Huan
Keywords: SiGe alloy;Optical properties;VASP;Alloys;Materials engineering;Semiconductor alloys;Band structure engineering
Issue Date: Dec-2008
Publisher: Elsevier Ltd
Citation: Solid State Communications, vol.148 (11-12), 2008, pages 521-524.
Abstract: Ultra-soft pseudopotential (US-PP) calculations with a powerful package called VASP (Vienna ab initio simulation package) are used. The total density of state and the energy gap of Si0.5Ge0.5 alloy of zinc-blende structure are calculated using the band structure scheme. The energy gap is found to be indirect for the zinc-blende structure. The results of refractive index and optical dielectric constant of Si0.5Ge0.5 alloy are investigated. The results are in reasonable agreement with experimental and theoretical ones.
Description: Link to publisher's homepage at www.elsevier.com
URI: http://www.sciencedirect.com/science/journal/00381098
ISSN: 0038-1098
Appears in Collections:School of Microelectronic Engineering (Articles)

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