Disordered phase of a two-dimensional Heisenberg Model with S=1

Abstract

We study an anisotropic version of the $J_1-J_2$ model with S=1. We find a second order transition from a Néel $Q=(\pi ,\pi )$ phase to a disordered phase with a spin gap.

4 pages, 5 figures

References in corpus (2)

• Dimerized phase and transitions in a spatially anisotropic square lattice antiferromagnet
• Confinement and deconfinement of spinons in a frustrated spin-1/2 Heisenberg model

Cited by in corpus (4)

• Phase separation and frustrated square lattice magnetism of Na1.5VOPO4F0.5
• Phase diagram of the frustrated, spatially anisotropic S=1 antiferromagnet on a square lattice
• The quantum $J_1$-$J_1^{\prime }$-$J_2$ spin-1/2 Heisenberg model: Influence of the interchain coupling on the ground-state magnetic ordering in 2D
• The Phase Transition of Square Lattice Antiferromagnets at Finite Temperature