DFT and X-ray study of structural, electronic, elastic and optical properties in BE1–XZNXS alloys depending on Vegard’s law
Price
Free (open access)
Volume
Volume 3 (2015), Issue 4
Pages
9
Page Range
340 - 349
Paper DOI
10.2495/CMEM-V3-N4-340-349
Copyright
WIT Press
Author(s)
A. GULTEKIN, P. PASHAEI, Z. KHAN, M.K. OZTURK, M. TAMER & Y. BAS
Abstract
Structural, optical and electronic properties and elastic constants of Be1–xZnxS alloys have been studied by employing the commercial code Castep based on density functional theory. The generalized gradient approximation and local density approximation were utilized as exchange correlation. Using elastic constants for compounds, bulk modulus, band gap, Fermi energy and Kramers–Kronig relations, dielectric constants and the refractive index have been found through calculations. Apart from these, X-ray measurements revealed elastic constants and Vegard’s law. It is seen that results obtained from theory and experiments are all in agreement.
Keywords
BeZnS, Castep, DFT, Vegard