The Ising version of the t-J model

Abstract

The t-J model is analysed in the limit of strong anisotropy, where the transverse components of electron spin are neglected. We propose a slave-particle-type approach that is valid, in contradiction to many of the standard approaches, in the low-doping regime and becomes exact for a half-filled system. We describe an effective method that allows to numerically study the system with the no-double-occupancy constraint rigorously taken into account at each lattice site. Then, we use this approach to demonstrate the destruction of the antiferromagnetic order by increasing the doping and formation of Nagaoka polarons in the strong interaction regime.

17 pages, 6 figures

References in corpus (5)

• Numerical approach to low-doping regime of the t-J model
• Bipolaron in the t-J model coupled to longitudinal and transverse quantum lattice vibrations
• Pattern formation in mixtures of ultracold atoms in optical lattices
• Effective approach to the Nagaoka regime of the two dimensional t-J model
• Ising t-J model close to half filling: A Monte Carlo study

Cited by in corpus (1)

• Quantum Monte Carlo study of the itinerant-localized model of strongly correlated electrons: Spin-spin correlation functions