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Type: Artigo de periódico
Title: Quantifying the levitation picture of extended states in lattice models
Author: Pereira, ALC
Schulz, PA
Abstract: The behavior of extended states is quantitatively analyzed for two-dimensional lattice models. A levitation picture is established for both white-noise and correlated disorder potentials. In a continuum limit window of the lattice models we find simple quantitative expressions for the extended states levitation, suggesting an underlying universal behavior. On the other hand, these results point out that the quantum Hall phase diagrams may be disorder dependent.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.66.155323
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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