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

Abstract

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.

6 pages, 7 figures

References in corpus (11)

• Superconductivity in Cu_xTiSe_2
• Evidence for an excitonic insulator phase in 1T-TiSe${}_2$
• Tuning the Charge Density Wave and Superconductivity in CuxTaS2
• Semimetal to semimetal charge density wave transition in 1T-TiSe${}_2$
• Emergence of Fermi pockets in an excitonic CDW melted novel superconductor
• Low-lying quasiparticle states and hidden collective charge instabilities in parent cobaltate superconductors (NaxCoO2)
• Thermodynamics of the two-dimensional Falicov-Kimball model: a classical Monte Carlo study
• GdI_2: A New Ferromagnetic Excitonic Solid?
• An extended Falicov-Kimball model on a triangular lattice
• Magnetic properties of doped GdI2
• Ground state phase diagram of a spinless, extended Falicov-Kimball model on the triangular lattice

Cited by in corpus (7)

• Correlation-driven phase transition in a Chern insulator
• Study of ground state phases for spin-1/2 Falicov-Kimball model on a triangular lattice
• Phase transitions in a spinless, extended Falicov-Kimball model on the triangular lattice
• Orbital Magnetic Field Driven Metal-Insulator Transition in Spinless Extended Falicov-Kimball Model on A Triangular Lattice
• Metal-Insulator Transition and Band Magnetism in the Spin-$1/2$ Falicov-Kimball Model on A Triangular Lattice with External Magnetic Field
• The Role of Intra- and Inter-site exchange correlations in the Extended Falicov-Kimball Model on a Triangular Lattice
• Classical and quantum liquids induced by quantum fluctuations