2003/12/18 by Hana Cencarikova, Hana Čenčariková, Pavol Farkašovský +1 · 1 citation
Physics and Astronomy · #Condensed matter physics #Electrical resistivity and conductivity #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Theoretical and Computational Physics #Variable-range hopping #cond-mat.str-el
paper · pdf · doi:10.1142/s0217979204023957
11 pages, 7 figures, LaTeX
arxiv created 2003/12/18 · openalex publication_date 2004/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The extrapolation of finite-cluster calculations is used to examine ground-state properties of the one-dimensional Falicov–Kimball model with correlated hopping. It is shown that the correlated hopping strongly influences both the valence transitions and the conducting properties of the model and so it should not be neglected in the correct description of materials with correlated electrons. This is illustrated for two selected values of the Coulomb interaction that represent typical behavior of the model for small and intermediate (strong) interactions. In both cases the insulator–metal transitions (accompanied by continuous or discontinuous valence transitions) induced by correlated hopping are observed.