Numerical Study of Electronic States in a Quantum Wire at Crossing Heterointerfaces

  • Henry K. Harbury
  • Wolfgang Porod
Part of the The Springer International Series in Engineering and Computer Science book series (SECS, volume 113)


We demonstrate that the confinement produced by the internal electric fields at crossing heterointerfaces is sufficient to produce a bound electronic state in two dimensions. The potential profiles and electronic states are obtained by numerically solving the Poisson and Schrödinger equations using the Finite Element Method. We also investigate the feasibility of parallelizing the calculations on the local element level by using a cluster of networked workstations as a distributed computational resource.


Finite Element Method Electronic State Quantum Wire Potential Profile Internal Electric Field 
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  1. [1]
    H. Sakaki, Jap. J. Appl. Phys. 19, L735 (1980).CrossRefGoogle Scholar
  2. [2]
    Y. Arakawa and A. Yariv, IEEE J. Quantum Electron. 22, 1887 (1986).CrossRefGoogle Scholar
  3. [3]
    P. M. Petroff, A. C. Gossard, R. A. Logan, W. Wiegman, Appl. Phys. Lett. 41, 635 (1982).CrossRefGoogle Scholar
  4. [4]
    Y.-C. Chang, L. L. Chang, and L. Esaki, Appl. Phys. Lett. 47, 1324 (1985).CrossRefGoogle Scholar
  5. [5]
    S. E. Laux and F. Stern, Appl. Phys. Lett 49, 91 (1986).CrossRefGoogle Scholar
  6. [6]
    T. Kerkhoven, A. T. Galick, J. H. Arends, U. Ravaioli, and Y. Saad, J. Appl. Phys., in press.Google Scholar
  7. [7]
    H. K. Harbury and W. Porod, J. Vac. Sci. Technol. B 8, in press.Google Scholar
  8. [8]
    K.-J. Bathe, Finite Element Procesure in Engineering Analysis (Prentice, 1982).Google Scholar
  9. [9]
    M. R. Frei and D. C. Tsui, Appl. Phys. Lett. 55, 2432 (1989).CrossRefGoogle Scholar
  10. [10]
    L. Pfeiffer, K. W. West, H. L. Stornier, J. P. Eisenstein, K. W. Baldwin, D. Gershoni, and J. Spector, Appl. Phys. Lett. 56, 1697 (1990).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Henry K. Harbury
    • 1
  • Wolfgang Porod
    • 1
  1. 1.Department of Electrical and Computer EngineeringUniversity of Notre DameNotre DameUSA

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