Non-Fermi behavior of the disorder electronic system

Details Non-Fermi behavior of the disorder electronic system Non-Fermi behavior of the disorder electronic system

1999-04-13

arxiv.org/abs/cond-mat/9904174v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We showed that an electronic system with weak disorder considered in the
finite-charge infinite U Hubbard model can present a non-Fermi behavior. The
imaginary pert of the self-energy has been calculated and a linear temperature
dependence was obtained. This result is in agreement with the non-Fermi
behavior observed at the insulator-metal crossover in La_{2-x}Sr_xCuO_4.

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