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Type: Artigo de periódico
Title: Magnetization plateaus and Luttinger liquid behavior in XXZ chains with superlattice structure
Author: Silva-Valencia, J
Miranda, E
Abstract: We study spin superlattices composed of a repeated pattern of two long spin-1/2 XXZ chains with different anisotropy parameters. They can be viewed as the limit of p-merized chains when the number of sites per cluster is very large. Magnetization plateaus are found, with magnetization values that depend On the relative sizes of the subchains, In certain regions of parameter space, the low-energy properties are described in terms of a Luttinger liquid superlattice parametrized by an effective velocity and an effective compactification radius.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.65.024443
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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