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Multiple mobility edges in a 1D Aubry chain with Hubbard interaction in presence of electric field: Controlled electron transport

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      Abstract

      Electronic behavior of a 1D Aubry chain with Hubbard interaction is critically analyzed in presence of electric field. Multiple energy bands are generated as a result of Hubbard correlation and Aubry potential, and, within these bands localized states are developed under the application of electric field. Within a tight-binding framework we compute electronic transmission probability and average density of states using Green's function approach where the interaction parameter is treated under Hartree-Fock mean field scheme. From our analysis we find that selective transmission can be obtained by tuning injecting electron energy, and thus, the present model can be utilized as a controlled switching device.

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      Journal
      2016-01-04
      2016-04-04
      1601.00996

      http://creativecommons.org/licenses/by/4.0/

      Custom metadata
      7 pages, 7 figures (Accepted for Publication in Physica E: Low-Dimensional Systems and Nanostructures)
      cond-mat.mes-hall

      Nanophysics

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