Optical properties of random alloys : A formulation
Materials Science
2007-05-23 v2
Abstract
We present here a formulation for the calculation of the configuration-averaged optical conductivity in random alloys. Our formulation is based on the augmented-space theorem introduced by one of us [A. Mookerjee, J. Phys. C: Solid State Phys. 6, 1340 (1973)]. We show that disorder scattering renormalizes the electron and hole propagators as well as the transition amplitude. The corrections to the transition amplitude have been shown to be related to the self-energy of the propagators and vertex corrections.
Cite
@article{arxiv.cond-mat/0403456,
title = {Optical properties of random alloys : A formulation},
author = {Kamal Krishna Saha and Abhijit Mookerjee},
journal= {arXiv preprint arXiv:cond-mat/0403456},
year = {2007}
}
Comments
15 figures, Phys. Rev. B 70 (2004), in press