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On the electronic properties of quantum dots

  • L. Jacak
  • J. Krasnyj
  • P. Hawrylak
  • A. Wójs
  • W. Nawrocka
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 477)

Abstract

The electronic states of a parabolic quantum dot in a magnetic field are studied with the spin-orbit interaction included. The analytical formulae for the ground-state energy of the interacting system are derived. The spin-orbit interaction introduces a new feature into the far infra-red absorption spectrum, namely a splitting of the two principal modes. This conclusion is compared with the charging experiments of Ashoori et al. and the far infra-red absorption measurements of Demel et al.

A model of an exciton confined in a quantum dot is also analyzed. At a critical dot-size, an additional strong line in the photo-luminescence spectrum appears, a consequence of the occurrence of a meta-stable weakly excited state.

Keywords

Hartree Equation Hartree Approximation Total Ground State Energy Hole Wavefunction Hartree Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    V. Shikin, S. Nazin, D. Heitmann and T. Demel, Phys. Rev. B, 43, 11 903 (1991).Google Scholar
  2. 2.
    L. Jacak and J. Krasnyj, (to be published).Google Scholar
  3. 3.
    R. C. Ashoori, H. L. Stormer, J. S. Weiner, L. N. Pfeiffer, K. W. Baldwin and K. W. West, Phys. Rev. Lett. 71, 613 (1993).CrossRefADSGoogle Scholar
  4. 4.
    T. Demel, D. Heitmann, P. Grambow and K. Ploog, Phys. Rev. Lett. 64, 788 (1990).CrossRefADSGoogle Scholar
  5. 5.
    D. Heitmann, Physica B, 212, 201 (1995); and references therein.CrossRefADSGoogle Scholar
  6. 6.
    S. V. Vonsovskij, “Magnetism”, Nauka-Moscow (1971), in Russian.Google Scholar
  7. 7.
    L. Jacak, J. Krasnyj, P. Hawrylak and A. Wójs, (to be published).Google Scholar
  8. 8.
    K. Brunner, U. Bockelmann, G. Abstreiter, M. Walther, G. Böhm, G. Tränkle and G. Weimann, Phys. Rev. Lett., 69, 3216 (1992)CrossRefADSGoogle Scholar
  9. 8a.
    U. Bockelmann, K. Brunner and G. Abstreiter, Solid State Electronics, 37, 1109 (1994).CrossRefADSGoogle Scholar
  10. 9.
    L. Jacak, J. Krasnyj, P. Hawrylak and A. Wójs, (to be published).Google Scholar
  11. 10.
    M. Bayer, A. Schmidt, A. Forchel, F. Faller, T. L. Reinecke, P. A. Knipp, A. A. Dremin, V. D. Kulakovskii, Phys. Rev. Lett., 74, 3439 (1995).CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • L. Jacak
    • 1
  • J. Krasnyj
    • 2
  • P. Hawrylak
    • 3
  • A. Wójs
    • 1
  • W. Nawrocka
    • 4
  1. 1.Institute of PhysicsTechnical University of WrocławWrocławPoland
  2. 2.Institute of PhysicsUniversity of OdessaOdessaUkraina
  3. 3.Institute for Microstructural SciencesNational Research Council of CanadaOttawaCanada
  4. 4.Institute of Theoretical PhysicsUniversity of WrocławWrocławPoland

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