Phase transitions induced by correlated hopping in the Falicov-Kimball model

Details Phase transitions induced by correlated hopping in the Falicov-Kimball model Phase transitions induced by correlated hopping in the Falicov-Kimball model

2003-12-18

arxiv.org/abs/cond-mat/0312479v1

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, 7 figures, LaTeX

Scientific paper

10.1142/S0217979204023957

The extrapolation of finite-cluster calculations is used to examine properties of the one-dimensional Falicov-Kimball model with correla It is shown that the correlated hopping strongly influences both the transitions and the conducting properties of the model and so it sho neglected in the correct description of materials with correlated el This is illustrated for two selected values of the Coulomb interacti that represent typical behavior of the model for small and intermedi (strong) interactions. In both cases the insulator-metal transitions (accompanied by continuous or discontinuous valence transitions) ind correlated hopping are observed.

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