Nonlinear transport in GaAs/AlAs harmonically confined quantum wires

I. C. da Cunha Lima, X.-F. Wang, and X. L. Lei
Phys. Rev. B 55, 10681 – Published 15 April 1997
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Abstract

The linear and nonlinear resistivities of GaAs/AlAs quantum wires under an applied magnetic field normal to the interfaces are obtained using the balance equation technique. Inelastic scattering by optic-confined and interface vibrational modes are analyzed. The observed sharp peaks in the linear resistivity showing phonon resonances in the scattering by bulk modes is broadened if this scattering is due to the GaAs confined modes. On the other hand, the AlAs-like interface modes add new peaks to the resistivity. The electron cooling effect is weakened at the magnetophonon resonance due to the greatly enhanced intersubband transition.

    DOI:https://doi.org/10.1103/PhysRevB.55.10681

    ©1997 American Physical Society

    Authors & Affiliations

    I. C. da Cunha Lima

    • Instituto de Física, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, 20550-013 Rio de Janeiro, Brazil
    • and Faculdade de Engenharia, Universidade São Francisco, Campus de Itatiba, 13257-900 Itatiba, São Paulo, Brazil

    X.-F. Wang

    • Instituto de Física, Universidade do Estado do Rio de Janeiro, Rua São Franciso Xavier 524, 20550-013 Rio de Janeiro, Brazil
    • and Shanghai Institute of Metallurgy, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China

    X. L. Lei

    • Shanghai Institute of Metallurgy, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China

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    Vol. 55, Iss. 16 — 15 April 1997

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