Thermodynamic studies of the two dimensional Falicov-Kimball model on a triangular lattice

Details Thermodynamic studies of the two dimensional Falicov-Kimball model on a triangular lattice Thermodynamic studies of the two dimensional Falicov-Kimball model on a triangular lattice

2011-10-28

arxiv.org/abs/1110.6286v1

The European Physical Journal B, 84, 365-370 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 7 figures

Scientific paper

10.1140/epjb/e2011-20670-3

Thermodynamic properties of the spinless Falicov-Kimball model are studied on a triangular lattice using numerical diagonalization technique with Monte-Carlo simulation algorithm. Discontinuous metal-insulator transition is observed at finite temperature. Unlike the case of square lattice, here we observe that the finite temperature effect is not able to smear out the discontinuous metal-insulator transition seen in the ground state. Calculation of specific heat (C_v) shows single and double peak structures for different values of parameters like on-site correlation strength (U), f-electron energy (E_f) and temperature.

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