Physical review. B, Condensed matter

Ground-state staggered magnetization of the antiferromagnetic Heisenberg model

O. Haan, J.-U. Klaetke, K.-H. Mütter

Published Sep 1, 1992• 12 citations

Abstract

Using helical boundary conditions, we present exact-diagonalization results for two-dimensional spin-1/2 antiferromagnetic Heisenberg systems. Energy and staggered magnetization for an infinite system are obtained by extrapolation from finite square systems. Comparisons with the results obtained for periodic boundary conditions are made.

DOI: 10.1103/physrevb.46.5723

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