Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/73112
Type: Artigo de periódico
Title: Valence-bond theory of highly disordered quantum antiferromagnets
Author: Zhou, S
Hoyos, JA
Dobrosavljevic, V
Miranda, E
Abstract: We present a large-N variational approach to describe the magnetism of insulating doped semiconductors based on a disorder-generalization of the resonating-valence-bond theory for quantum antiferromagnets. This method captures all the qualitative and even quantitative predictions of the strong-disorder renormalization group approach over the entire experimentally relevant temperature range. Finally, by mapping the problem on a hard-sphere fluid, we could provide an essentially exact analytic solution without any adjustable parameters. Copyright (C) EPLA, 2009
Country: França
Editor: Epl Association, European Physical Society
Rights: aberto
Identifier DOI: 10.1209/0295-5075/87/27003
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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