This article is cited in 2 papers

Electron and spin transport in adiabatic quantum pump based on armchair graphene nanoribbons

E. Grichuk^ab, E. A. Manykin<sup>ab

a</sup> National Engineering Physics Institute "MEPhI", Moscow
^b National Research Centre "Kurchatov Institute", Moscow

Abstract: The phenomenon of adiabatic quantum pump in double-barrier structures based on armchair graphene nanoribbons has been theoretically analyzed within the framework of the tight binding approximation. An analytical expression for a bilinear response is obtained that is valid at small Fermi energies. Using the effect of proximity to a ferromagnetic dielectric, it is possible to obtain both electron and pure spin currents. Dependences of the generated electron and spin currents on the Fermi energy have been numerically calculated. The validity of the adiabatic approximation is assessed based on the dwell time for electron travelling through the system.

Received: 16.06.2011

 English version: Technical Physics Letters, 2011, 37:11, 1074–1077

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