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Physical review. B, Condensed matter

Spin-1XXZmodel on the square lattice

H. Q. Lin, Victor J. Emery

Published Aug 1, 1989• 11 citations
Publisher

Abstract

We compute the ground-state energy and spin-spin correlations on various finite square lattices exactly for the spin-1 XXZ model. Estimates of the ground-state energy and order parameters are obtained by extrapolation to infinite lattice. Our results are consistent with the existence of long-range order for all values of anisotropy \ensuremath{\Delta}. .AE

DOI
10.1103/physrevb.40.2730

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