STABILITY OF MARGINAL FERMI-LIQUID AND ITS FREE-ENERGY FORMULA

The Marginal Fermi Liquid (MFL) hypothesis is analysed using Eliashber g formalism in a self-consistent manner in the normal phase. The detai led structure of the polarizability function describing the boson and the electron-boson coupling strength are found to play a very importan t role in obtaining a stable MFL solution. The possible - impact on mi croscopic theory is highlighted. Investigation of the superconducting phase reached from such an MFL, shows the breakdown of Bardeen Stephen Free Energy Formula.