Disorder information from conductance: A quantum inverse problem

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorDublin 2-
Autor(es): dc.contributorSaõ Paulo State University-
Autor(es): dc.contributorUniversidade Federal Fluminense (UFF)-
Autor(es): dc.contributorTrinity College Dublin-
Autor(es): dc.creatorMukim, S.-
Autor(es): dc.creatorAmorim, F. P.-
Autor(es): dc.creatorRocha, A. R.-
Autor(es): dc.creatorMuniz, R. B.-
Autor(es): dc.creatorLewenkopf, C.-
Autor(es): dc.creatorFerreira, M. S.-
Data de aceite: dc.date.accessioned2025-08-21T21:52:30Z-
Data de disponibilização: dc.date.available2025-08-21T21:52:30Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2020-08-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.102.075409-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/231450-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/231450-
Descrição: dc.descriptionIt is straightforward to calculate the conductance of a quantum device once all its scattering centers are fully specified. However, to do this in reverse, i.e., to find information about the composition of scatterers in a device from its conductance, is an elusive task. This is particularly more challenging in the presence of disorder. Here we propose a procedure in which valuable compositional information can be extracted from the seemingly noisy spectral conductance of a two-terminal disordered quantum device. In particular, we put forward an inversion methodology that can identify the nature and respective concentration of randomly-distributed impurities by analyzing energy-dependent conductance fingerprints. Results are shown for graphene nanoribbons as a case in point using both tight-binding and density functional theory simulations, indicating that this inversion technique is general, robust, and can be employed to extract structural and compositional information of disordered mesoscopic devices from standard conductance measurements.-
Descrição: dc.descriptionSchool of Physics Trinity College Dublin Dublin 2-
Descrição: dc.descriptionInstituto de Física Teórica Saõ Paulo State University-
Descrição: dc.descriptionInstituto de Física Universidade Federal Fluminense-
Descrição: dc.descriptionCentre for Research on Adaptive Nanostructures and Nanodevices (CRANN) Advanced Materials and Bioengineering Research (AMBER) Centre Trinity College Dublin-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review B-
???dc.source???: dc.sourceScopus-
Título: dc.titleDisorder information from conductance: A quantum inverse problem-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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