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arXiv · 0802.2627

Anderson localization on Falicov-Kimball model with next-nearest-neighbor hopping and long-range correlated disorder

D. O. Maionchi·A. M. C. Souza·H. J. Herrmann·R. N. da Costa Filho
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Abstract

The phase diagram of correlated, disordered electron systems is calculated within dynamical mean-field theory for the Anderson-Falicov-Kimball model with nearest-neighbors and next-nearest-neighbors hopping. The half-filled band is analyzed in terms of the chemical potential of the system using the geometric and arithmetic averages. We also introduce the on-site energies exhibiting a long-range correlated disorder, which generates a system with similar characteristics as the one created by a random independent variable distribution. A decrease in the correlated disorder reduces the extended phase.

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D. O. Maionchi, A. M. C. Souza, H. J. Herrmann, R. N. da Costa Filho. 2008-02-19. Anderson localization on Falicov-Kimball model with next-nearest-neighbor hopping and long-range correlated disorder. https://doi.org/10.1103/physrevb.77.245126

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