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Segregation and charge-density-wave order in the spinless Falicov-Kimball model

J. K. Freericks·R. Lemanski
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Abstract

The spinless Falicov-Kimball model is solved exactly in the limit of infinite-dimensions on both the hypercubic and Bethe lattices. The competition between segregation, which is present for large U, and charge-density-wave order, which is prevalent at moderate U, is examined in detail. We find a rich phase diagram which displays both of these phases. The model also shows nonanalytic behavior in the charge-density-wave transition temperature when U is large enough to generate a correlation-induced gap in the single-particle density of states.

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J. K. Freericks, R. Lemanski. 1999-12-10. Segregation and charge-density-wave order in the spinless Falicov-Kimball model. https://doi.org/10.1103/physrevb.61.13438

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