Orbital Magnetic Field Driven Metal-Insulator Transition in Spinless Extended Falicov-Kimball Model on A Triangular Lattice
arXiv:1607.05240 · doi:10.1016/j.ssc.2016.10.008
Abstract
Ground state properties of spinless, extended Falicov-Kimball model (FKM) on a finite size triangular lattice with orbital magnetic field normal to the lattice are studied using numerical diagonalization and Monte-Carlo simulation methods. We show that the ground state configurations of localized electrons strongly depend on the magnetic field. Magnetic field induces a metal to insulator transition accompanied by segregated phase to an ordered regular phase except at density of localized electrons. It is proposed that magnetic field can be used as a new tool to produce segregated phase which was otherwise accessible only either with correlated hopping or with large on-site interactions.
6 pages, 11 figures
References in corpus (5)
- Low-lying quasiparticle states and hidden collective charge instabilities in parent cobaltate superconductors (NaxCoO2)
- Quantum phases in mixtures of fermionic atoms
- GdI_2: A New Ferromagnetic Excitonic Solid?
- Study of ground state phases for spin-1/2 Falicov-Kimball model on a triangular lattice
- Mixtures of fermionic atoms in an optical lattice