Dimensional Crossover in Quasi-one-dimensional Spin-1 Heisenberg Antiferromagnets

Abstract

We study the quenching of the Haldane gap in quasi-one-dimensional systems of weakly coupled spin-1 antiferromagnetic Heisenberg chains. The critical interchain coupling Jc required to stabilize long range magnetic order can be accurately determined from large scale quantum Monte Carlo calculations. Several different geometries of coupled chains are studied, illustrating the dependence of Jc on the coordination of chains. For bipartite geometries, ferromagnetically coupled chains yield similar magnitudes for Jc.

5 pages, SCES 2013

References in corpus (2)

• Quantum Monte Carlo with Directed Loops
• Ground-State Phase Diagram of Quantum Heisenberg Antiferromagnets on the Anisotropic Dimerized Square Lattice

Cited by in corpus (2)

• Topological quantum phase transition driven by anisotropic spin-orbit coupling in trinuclear organometallic coordination crystals
• Effects of anisotropy in spin molecular-orbital coupling on effective spin models of trinuclear organometallic complexes