Next-Nearest-Neighbor Hopping in the Falicov-Kimball Model
K. Czajka and M.M. Maśka
Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
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Received: 25 09 2005;
Results of Monte Carlo simulations for the spinless Falicov-Kimball model with the next-nearest-neighbor hopping are presented. We find the critical value of the next-nearest-neighbor hopping integral, below which the low temperature configuration of the localized particles is the same as in the presence of only the nearest-neighbor hopping. Beyond this critical value the localized particles form horizontal or vertical stripes.
DOI: 10.12693/APhysPolA.109.465
PACS numbers: 71.10.-w, 71.10.Fd