Reversal of thermoelectric current in tubular nanowires

Show simple item record Erlingsson, Sigurdur I. Manolescu, Andrei Nemnes, George Alexandru Bardarson, Jens H. Sánchez Martín, David 2018-10-17T12:50:37Z
dc.description.abstract [eng] We calculate the charge current generated by a temperature bias between the two ends of a tubular nanowire. We show that in the presence of a transversal magnetic field the current can change sign; i.e., electrons can either flow from the hot to the cold reservoir, or in the opposite direction, when the temperature bias increases. This behavior occurs when the magnetic field is sufficiently strong, such that Landau and snaking states are created, and the energy dispersion is nonmonotonic with respect to the longitudinal wave vector. The sign reversal can survive in the presence of impurities. We predict this result for core-shell nanowires, for uniform nanowires with surface states due to the Fermi level pinning, and for topological insulator nanowires.
dc.format application/pdf
dc.relation.isformatof Reproducció del document publicat a:
dc.relation.ispartof Physical Review Letters, 2017, vol. 119, p. 036804-1-036804-6
dc.subject.classification 53 - Física
dc.subject.other 53 - Physics
dc.title Reversal of thermoelectric current in tubular nanowires
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion 2018-10-17T12:50:37Z info:eu-repo/date/embargoEnd/2075-01-01
dc.embargo 2075-01-01
dc.rights.accessRights info:eu-repo/semantics/embargoedAccess

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