Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/13381
metadata.artigo.dc.title: Integer quantum hall effect on an interface with disclinations
metadata.artigo.dc.creator: Lima, Anderson Alves de
Filgueiras, Cleverson
metadata.artigo.dc.subject: Mesoscopic
Nanoscale Systems
metadata.artigo.dc.publisher: EDP Sciences
metadata.artigo.dc.date.issued: Dec-2012
metadata.artigo.dc.identifier.citation: LIMA, A. A. de; FILGUEIRAS, C. Integer quantum hall effect on an interface with disclinations. The European Physical Journal B, Les Ulis, v. 85, n. 401, Dec. 2012.
metadata.artigo.dc.description.abstract: The Hall conductivity of an electron gas on an interface showing topological defects as disclinations in the presence of an orthogonal constant magnetic field is investigated. This kind of defect induces either positive or negative singular curvature in the medium. It is shown that the positive curvature decreases the quantum Hall plateau widths and shifts the steps in the Hall conductivity to lower magnetic fields. In contrast, the negative one leaves to the existence of two types of plateaus, one with higher widths and the other one with lower widths in comparison to the flat case. In this case, the shift in the steps of the Hall conductivity goes to higher magnetic fields. We also investigate the Hall conductivity for electrons around a cylindrically symmetric distribution of disclinations and it turns out that it is the same as that corresponding to a single effective disclination.
metadata.artigo.dc.identifier.uri: https://link.springer.com/article/10.1140/epjb/e2012-30766-9
http://repositorio.ufla.br/jspui/handle/1/13381
metadata.artigo.dc.language: en_US
Appears in Collections:DFI - Artigos publicados em periódicos

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