Pramana

, Volume 62, Issue 5, pp 1167–1172 | Cite as

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

  • E. Sadeghi
Article
Received:
Revised:
Accepted:

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.

Keywords

Envelope function heterojunction quantum confinement 

PACS Nos

71.15.-m 73.20.Dx 
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Copyright information

© Indian Academy of Sciences 2004

Authors and Affiliations

  • E. Sadeghi
    • 1
  1. 1.Department of PhysicsYasouj UniversityYasoujIran

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