Exact result on the Mott transition in a two-dimensional model of strongly correlated electrons

Abstract

We study the properties of a quarter-filled system of electrons on a square lattice interacting through a local repulsion $U$ and a nearest-neighbour repulsion $V$ in the limit $V=+\infty$. We identify the ground-state for $U$ large enough and show that domain walls appear below a critical value $U_c=4t/\pi$. We argue that this corresponds to a metal-insulator transition due to Mott localization.

arXiv comment7 pages of RevTex, Figures available on request. LPQTH 94/03

Cited by in corpus (8)

• Charge ordering and antiferromagnetic exchange in layered molecular crystals of the theta type
• Stripes and holes in a two-dimensional model of spinless fermions and hardcore bosons
• Spinless fermions and charged stripes at the strong-coupling limit
• High-Temperature Criticality in Strongly Constrained Quantum Systems
• Spectroscopy of two-dimensional interacting lattice electrons using symmetry-aware neural backflow transformations
• Supersymmetry on the honeycomb lattice: resonating charge stripes, superfrustration, and domain walls
• Hole on a stripe in a spinless fermion model
• Frustration induced incommensurate solids in the extended Bose-Hubbard model