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Type: Artigo de periódico
Title: Anisotropic Heisenberg Antiferromagnet With Arbitrary Dimensionality
Author: Cabrera G.G.
Lagos M.
Kiwi M.
Abstract: We derive closed-form asymptotic expressions for the ground state, low-lying excitations, ground state energy, and short-range order parameter for the antiferromagnetic Heisenberg model in the quasi-Ising asymptotic limit. A general lattice with no frustration of the antiferromagnetic order is assumed. Comparisons with exact results in one- and numerical data in two-dimensions yield excellent agreement over a wide range of values of the anisotrpy parameter. © 1988.
Rights: fechado
Identifier DOI: 10.1016/0038-1098(88)90056-7
Date Issue: 1988
Appears in Collections:Unicamp - Artigos e Outros Documentos

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