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

      E Sadeghi

      Volume 62 Issue 5 May 2004 pp 1167-1172

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/062/05/1167-1172

    • 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

       
      Published
      May 2004
      Manuscript received
      16 September 2003
      Manuscript revised
      2 February 2004
      Accepted
      13 March 2004

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