Magnetoexcitonic states in a quantum ring with the Winternitz-Smorodinsky confinement potential

  • A. K. Atayan
  • E. M. Kazaryan
  • A. V. Meliksetyan
  • H. A. Sarkisyan
Article

Abstract

We investigate magnetoexcitonic states in the Ga1−x1Alx1As/GaAs/Ga1−x2Alx2 As quantum ring with the Winternitz-Smorodinsky confinement potential. A homogeneous magnetic field is directed perpendicularly to the ring plane. The Coulomb interaction between the electron and hole is assumed as weak and is considered in the framework of perturbation theory. Obtained results show that the more realistic Winternitz-Smorodinsky confinement potential, which takes into account a peculiar smoothing of the confinement potential profile, leads to raising of the electron energy levels as compared to the case of a finite-height rectangular confinement potential.

Key words

quantum ring magnetoexcitonic states confinement potential Coulomb interaction 

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References

  1. 1.
    Lorke, A., Luyken, R.J., Govorov, A.O., et al., Phys. Rev. Lett., 2000, vol. 84, p. 2223.CrossRefADSGoogle Scholar
  2. 2.
    Bandos, T.V., Cantarero, A., and García-Cristóbal, A., Eur. Phys. J., 2006, vol. B53, p. 1434.Google Scholar
  3. 3.
    Li, H.-T., Liu, L.-Z., and Liu, J.-J., Chin. Phys. Lett., 2008, vol. 25, p. 4101.CrossRefADSGoogle Scholar
  4. 4.
    Wang, C.-D., Yang, F.-H., and Feng, S.-L., Chin. Phys., 2008, vol. B17, p. 3054.ADSGoogle Scholar
  5. 5.
    Wu, H., Chin. Phys., 2008, vol. B17, p. 3026.ADSGoogle Scholar
  6. 6.
    Barticevic, Z., Pacheco, M., and Latgé, A., Phys. Rev. B, 2000, vol. 62, p. 6963.CrossRefADSGoogle Scholar
  7. 7.
    Liu, Y.-M., Yu, Z.-Y., and Ren, X.-M., Chin. Phys., 2009, vol. B18, p. 9.ADSGoogle Scholar
  8. 8.
    Li, Y., Int. J. Mod. Phys., 2003, vol. C14, p. 995.ADSGoogle Scholar
  9. 9.
    Lin, J.C. and Guo, G.Y., Phys. Rev., 2001, vol. B65, p. 035304.ADSGoogle Scholar
  10. 10.
    Chakraborty, T. and Pietilainen, P., Phys. Rev., 1994, vol. B50, p. 8460.ADSGoogle Scholar
  11. 11.
    Tan, W.-C. and Inkson, J.C., Semicond. Sci. Technol., 1996, vol. 11, p. 1635.CrossRefADSGoogle Scholar
  12. 12.
    Atayan, A.K., Kazaryan, E.M., Meliksetyan, A.V., and Sarkisyan, H.A., J. Comput. Theor. Nanoscience, 2010, vol. 7, p. 1.CrossRefGoogle Scholar
  13. 13.
    Halonen, V., Chakraborty, T., and Pietilinen, P., Phys. Rev. B, 1992, vol. 45, p. 5980.CrossRefADSGoogle Scholar
  14. 14.
    Janssens, K.L., Partoens, B., and Peeters, F.M., Phys. Rev. B, 2001, vol. 64, p. 155324.CrossRefADSGoogle Scholar
  15. 15.
    Janssens, K.L., Partoens, B, and Peeters, F.M., Phys. Rev. B, 66, 2002, vol. 075314.Google Scholar
  16. 16.
    Janssens, K.L., Partoens, B., and Peeters, F.M., Phys. Rev. B, 2003, vol. 67, p. 235325.CrossRefADSGoogle Scholar
  17. 17.
    Atayan, A.K., Kazaryan, E.M., Meliksetyan, A.V., and Sarkisyan, H.A., Eur. Phys. J., 2008, vol. B63, p. 485.ADSGoogle Scholar
  18. 18.
    TadiĆ, M. and Peeters, F.M., Phys. Rev., 2009, vol. B79, p. 153305.ADSGoogle Scholar
  19. 19.
    Xie, W.-F., Communications in Theoretical Physics, 2008, vol. 50, p. 529.CrossRefADSGoogle Scholar
  20. 20.
    Korkusiński, M., Hawrylak, P., and Bayer, M., Phys. Stat. Sol. (b), 2002, vol. 234, p. 273.CrossRefADSGoogle Scholar
  21. 21.
    Chaplik, A.V., JETP, 2001, vol. 92, p. 169.CrossRefADSGoogle Scholar

Copyright information

© Allerton Press, Inc. 2010

Authors and Affiliations

  • A. K. Atayan
    • 1
  • E. M. Kazaryan
    • 2
  • A. V. Meliksetyan
    • 3
  • H. A. Sarkisyan
    • 2
    • 3
  1. 1.Institute of Radiophysics and ElectronicsNAS of ArmeniaAshtarakArmenia
  2. 2.Russian-Armenian (Slavonic) State UniversityYerevanArmenia
  3. 3.Yerevan State UniversityYerevanArmenia

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