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|Type:||Artigo de periódico|
|Title:||Magnetization plateaus and Luttinger liquid behavior in XXZ chains with superlattice structure|
|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.|
|Editor:||American Physical Soc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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