IC/96/121 United Nations Educational Scientific and Cultural Organization and International Atomic Energy Agency INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS AN AUGMENTED SPACE RECURSIVE TECHNIQUE FOR THE CALCULATION OF ELECTRONIC STRUCTURE OF RANDOM BINARY ALLOYS : II Biplab Sanyal 1 , Parthapratim Biswas 1 , Indra Dasgupta 2 and Abhijit Mookerjee 1 International Centre for Theoretical Physics, Trieste, Italy. ABSTRACT We had earlier presented a computationally feasible and fast technique for obtaining the electronic structure of random alloys which allowed us to incorporate effects like clustering, short-ranged order and off-diagonal disorder arising out of size mismatch and consequent lattice distortions. The method combined the augmented space technique with the recursion method and the tight-binding LMTO. We have recast the formalism in a way that allows us to sample many more configuration states and allows us to use the method directly on the screened KKR. to illustrate our procedure. MIRAMARE - TRIESTE July 1996 Permanent address: S. N. Bose National Centre for Basic Sciences, JD Block, Sector 3, Salt Lake City, Calcutta 700091, India. 2 Permanent address: Max-Planck Institut fur Festkorperforschung, Stuttgart, Germany.