Dynamics of disordered heavy Fermion systems

Details Dynamics of disordered heavy Fermion systems Dynamics of disordered heavy Fermion systems

1996-09-24

arxiv.org/abs/cond-mat/9609238v1

Physics

Condensed Matter

5 pages, LaTeX and 4 PS figures

Scientific paper

10.1103/PhysRevB.56.R2920

Dynamics of the disordered heavy Fermion model of Dobrosavljevic et al. are calculated using an expression for the spectral function of the Anderson model which is consistent with quantum Monte Carlo results. We compute the self-energy for three distributions of Kondo scales including the distribution of Bernal et al. for UCu{5-x}Pd{x}. The corresponding low temperature optical conductivity shows a low-frequency pseudogap, a negative optical mass enhancement, and a linear in frequency transport scattering rate, consistent with results in Y{1-x}U{x}Pd{3} and UCu{5-x}Pd{x}.

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