Investigation of the optical properties of P,As and Sb incorporated AlGaX alloys using full potential linearized augmented plane wave method |
| |
Authors: | Iftikhar Ahmad Muhammad Maqbool |
| |
Affiliation: | 1. Department of Physics, University of Malakand, Chakdara, Pakistan;2. Department of Materials Science & Technology, Qatar University, Doha, Qatar;3. Department of Physics & Astronomy, Ball State University, Muncie, IN 47306, USA |
| |
Abstract: | Dielectric function, absorption coefficient, reflectivity, optical conductivity, energy loss spectra, index of refraction and extinction coefficient of AlGaX (X=P, As, Sb) in rocksalt phase, are calculated using full potential linearized augmented plane wave (FP-LAPW) method. All optical parameters are calculated in the incident photon energy range 0–25 eV. The maximum value of optical conductivity observed is 15 000 S. Index of refraction has a maximum value of 4.6. A decrease in the absorption coefficient and optical conductivity is observed when X is replaced by P, As and Sb. The extinction coefficient increases when P is replaced by As and Sb. The high value (n=4.6) of the index of refraction shows that AlGaX is a suitable alloy to be used in making advanced optical devices. |
| |
Keywords: | Alloys Absorption coefficient Energy loss function Optical materials |
本文献已被 ScienceDirect 等数据库收录! |
|