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|Title:||Optical investigations using ultra-soft pseudopotential calculations of Si0.5Ge0.5 alloy|
|Keywords:||A. SiGe alloy|
B. Optical properties
|Source:||Al-Douri, Y., Feng, Y.P., Huan, A.C.H. (2008-12). Optical investigations using ultra-soft pseudopotential calculations of Si0.5Ge0.5 alloy. Solid State Communications 148 (11-12) : 521-524. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ssc.2008.09.055|
|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. © 2008 Elsevier Ltd. All rights reserved.|
|Source Title:||Solid State Communications|
|Appears in Collections:||Staff Publications|
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