Theory of the Marginal Fermi Liquid Spectrum in the Local Treatment of the Large-U Falicov-Kimball Model

Mukul S. Laad

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Theory of the Marginal Fermi Liquid Spectrum in the Local Treatment of the Large-U Falicov-Kimball Model

Mukul S. Laad

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Abstract

The Marginal Fermi Liquid (MFL) hypothesis proposed by Varma et al is derived from a consistent treatment of local spinfluctuations in the Falicov-Kimball model (FKM). Within an infinite-dimensional mean-field approach, a marginal Fermi liquid susceptibility and single-particle self-energy are obtained near half-filling, and a Fermi liquid phase is recovered sufficiently away from half-filling, in agreement with indications from experiments which probe the normal state of the cuprates as a function of doping

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Mukul S. Laad. 1997-06-19. Theory of the Marginal Fermi Liquid Spectrum in the Local Treatment of the Large-U Falicov-Kimball Model. https://arxiv.org/abs/cond-mat/9706201

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