Optical conductivity in disordered alloys : an approach via the augmented space recursion

TL;DR

This paper develops a method to calculate the average optical conductivity in disordered binary alloys like CuAu and AgAu using augmented space formalism and recursion techniques.

Contribution

It introduces a novel approach combining augmented space formalism with recursion to compute optical properties of disordered alloys.

Findings

Calculated optical conductivity for CuAu and AgAu alloys.

Demonstrated the effectiveness of the augmented space recursion method.

Provided a new computational framework for disordered materials.

Abstract

We present here a calculation of the configuration averaged optical conductivity of random binary alloys CuAu and AgAu. Our formulation is based on the augmented space formalism proposed by Mookerjee [J. Phys. C : Solid State Phys. {\bf 6} 1340 (1973)] and the optical conductivity is obtained directly through a recursive procedure suggested by Viswanath and M\"uller ["The user friendly recursion method", Troisieme Cycle de la Physique, en Suisse Romande (1993)].