J. Phys. I France
Volume 5, Numéro 9, September 1995
Page(s) 1199 - 1211
DOI: 10.1051/jp1:1995191
J. Phys. I France 5 (1995) 1199-1211

A Real-Space Approach to Electronic Transport

D. Mayou1 and S.N. Khanna2

1  LEPES, CNRS, 38042 Grenoble Cedex, France
2  Physics Department, Virginia Commonwealth University, Richmond, VA 23284-2000, USA

(Received 28 February 1995, revised 12 May 1995, accepted 2 June 1995)

Using orthogonal polynomials, a novel approach for studying DC and AC conductivity and velocity-velocity correlation function has been developed. The method works in direct space and can treat order or disordered, finite or infinite, and pure or alloy systems with equal ease. Further, it is not computer intensive and allows conductivity calculations as a function of frequency or the location of the Fermi energy in an efficient manner.

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