Establishing a non-Fermi liquid theory for disordered metals near two dimensions

M. A. Baranov, I. S. Burmistrov, A. M. M. Pruisken

Published 2001-06-21Version 1

We consider the finkelstein action describing a system of spin polarized or spinless electrons near two dimensions, in the presence of disorder as well as the Coulomb interactions.We extend the renormalization group analysis of our previous work and evaluate the metal-insulator transition of the electron gas to second order in an (d-2) expansion. We obtain the complete scaling behavior of physical observables like the conductivity and the specific heat with varying frequency, temperature and/or electron density.