# Phase separation and three-site hopping in the two-dimensional t-J model

@article{Ercolessi1997PhaseSA, title={Phase separation and three-site hopping in the two-dimensional t-J model}, author={Elisa Ercolessi and Pierbiagio Pieri and Marco Roncaglia}, journal={Physics Letters A}, year={1997}, volume={233}, pages={451-456} }

## 5 Citations

Ground-state phase diagram of the one-dimensional
t−J
model with pair hopping terms

- PhysicsPhysical Review B
- 2018

The $t$–$J$ model is a standard model of strongly correlated electrons, often studied in the context of high-$T_c$ superconductivity. However, most studies of this model neglect three-site terms,…

Competing orders in the Hofstadter t -J model

- Physics
- 2018

The Hofstadter model describes noninteracting fermions on a lattice in the presence of an external magnetic field. Motivated by the plethora of solid-state phases emerging from electron interactions,…

Utilization of Renormalized Mean-Field Theory upon Novel Quantum Materials

- PhysicsSpringer Theses
- 2019

This thesis is aiming in utilizing the strongly correlated t-J Hamiltonian for better understanding the microscopic pictures of certain condensed matter scenario and presents one of the methods called renormalized mean-field theory (RMFT) and exploit it upon the t- J model.

Renormalized Mean Field Theory

- PhysicsUtilization of Renormalized Mean-Field Theory upon Novel Quantum Materials
- 2019

To deal with the issues mentioned in the previous chapter, we chose to follow certain numerical approaches. Like the protocol most of us would follow when encountering a physical scenario, one…

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We have used exact diagonalization and quantum Monte Carlo methods to study the one-dimensional {ital t}-{ital J} model including the three-site hopping term derived from the strong-coupling limit of…

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- 1993

Hole-density correlation functions in the t-J model on lattices with square geometry are studied by the method of exact diagonalisation for systems of various sizes with up to 26 sites, showing clear evidence for hole-clustering instabilities.

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The phase diagram of the 2D {ital t}-{ital J} model is investigated using high-temperature expansions and a region of divergent uniform magnetic susceptibility is found.