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BIBTEX RIS

Correlation Length of the S = 2 Antiferromagnetic Heisenberg Chain

1993; Physical Society of Japan; Volume: 62; Issue: 4 Linguagem: Inglês

10.1143/jpsj.62.1346

ISSN

1347-4073

Autores

Naomichi Hatano, Masuo Suzuki,

Tópico(s)

Algebraic structures and combinatorial models

Resumo

Temperature dependence of the correlation length of the one-dimensional S =2 Heisenberg antiferromagnet is investigated numerically, to compare with those of the S =1/2, 1, 3/2 models. The correlation length of the S =2 model is found to be saturated to a value ξ -1 ≃0.012(2) as T →0, which confirms the Haldane conjecture. Combined with the estimate ξ -1 ≃0.16 of the S =1 model by other authors, the present estimate is well explained by ξ -1 ∼ S exp (-π S ).

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