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Title: A tensor network study of the complete ground state phase diagram of the spin-1 bilinear-biquadratic Heisenberg model on the square lattice
Author(s): Ido Niesen, Philippe Corboz
As Contributors: Ido Niesen
Arxiv Link: http://arxiv.org/abs/1707.01953v2
Date submitted: 2017-07-13
Submitted by: Niesen, Ido
Submitted to: SciPost Physics
Domain(s): Theor. & Comp.
Subject area: Condensed Matter Physics - Theory

Abstract

Using infinite projected entangled pair states, we study the ground state phase diagram of the spin-1 bilinear-biquadratic Heisenberg model on the square lattice directly in the thermodynamic limit. We find an unexpected partially nematic partially magnetic phase in between the antiferroquadrupolar and ferromagnetic regions. Furthermore, we describe all observed phases and discuss the nature of the phase transitions involved.

Current status:

Editor-in-charge assigned, manuscript under review