Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Valence-bond theory of highly disordered quantum antiferromagnets|
|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|
|Editor:||Epl Association, European Physical Society|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.