• Energy levels in rectangular quantum well wires based on a modified profile of the heterojunction

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    • Keywords


      Envelope function; heterojunction; quantum confinement

    • Abstract


      The effect of a spatially dependent effective mass on the energy levels in a rectangular quantum wire with finite barrier potential is considered. The heterojunction is modelled by an error function rather than a step function to more accurately model the material transition region at the interface between the two materials. The carrier ground state is calculated using the envelope function approximation for Ga0.47In0.53As/InP and GaAs/Ga0.63Al0.37As systems. The results are lower than those reported before, and are in better agreement with the experimental points.

    • Author Affiliations


      E Sadeghi1

      1. Department of Physics, Yasouj University, Yasouj - 75914-353, Iran
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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