Miniband landscape of disordered dimer superlattices

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Show simple item record Berman, Gennady P. Domínguez-Adame, Francisco Sánchez, Angel 2012-09-14T08:03:05Z 2012-09-14T08:03:05Z 1997-09-01
dc.identifier.bibliographicCitation Physica D: Nonlinear Phenomena, vol. 107, n. 2-4, 1 sep. 1997. Pp. 166-170
dc.identifier.issn 0167-2789
dc.description 16th Annual International Conference of the Center for Nonlinear Studies, 13-17 may 1996, Los Alamos, NM, USA
dc.description.abstract We investigate numerically the universal quantum fluctuations of the resistance and conductance in disordered dimer semiconductor superlattices. These systems exhibit sets of extended states (in spite of being disordered) due to the resonance induced by the dimer structure. We show that the transmission amplitude r (E) is a function of the energy of injected electrons and that its main characteristic is a "center" where r(E) ~ 1. This region of energy can be considered as consisting of weakly localized states proper of mesoscopic systems. On the other hand, the landscape of the allowed energies is a complex one, because close to the band edges, where r(E) « I, states are strongly localized. We attempt to understand these two regions by investigating the universal fluctuation properties of the resistance and conductance in both ofthem. We also hope that this study will contribute to the knowledge about universal fluctuations in mesoscopic systems.
dc.description.sponsorship Work at Leganes and Madrid is supported by CICYT (Spain) under Grant No. MAT95-0325. Work at Los Alamos was supported by the Defence Advanced Research Projects Agency. GPB also gratefully acknowledges the partial support of Linkage Grant 93-1602 from the NATO Special Programme Panel on Nanotechnology.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.subject.other Disordered dimer superlattice
dc.subject.other Resonance
dc.subject.other Quantum fluctuations
dc.title Miniband landscape of disordered dimer superlattices
dc.type article
dc.description.status Publicado
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1016/S0167-2789(97)00082-1
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.relation.eventdate 13-17 may 1996
dc.relation.eventnumber 16th
dc.relation.eventplace Los Alamos, NM, USA
dc.relation.eventtitle International Conference of the Center for Nonlinear Studies
dc.identifier.publicationfirstpage 166
dc.identifier.publicationissue n. 2-4
dc.identifier.publicationlastpage 170
dc.identifier.publicationtitle Physica D: Nonlinear Phenomena
dc.identifier.publicationvolume vol. 107
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