The European Physical Journal B

, Volume 63, Issue 4, pp 485–492 | Cite as

Magneto-absorption in cylindrical quantum dots

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

Abstract

The absorption of light in an ensemble of non-interacting cylindrical quantum dots in the presence of a magnetic field is discussed using a model consisting of dots with rectangular infinitely-high potential barriers. The ensemble’s absorption coefficient is calculated — as well as the threshold frequency of absorption — as a function of the applied magnetic field and the quantum dot size. Theoretical results are compared with experimental data on magneto-luminescence in an In0.53Ga0.47As/InP cylindrical quantum dot system. In addition, using a perturbation theory framework, the influence of excitonic effects on the behaviour of the electron-hole energetic spectrum of said system is discussed.

PACS

71.20.Nr Semiconductor compounds 73.61.Ey III–V semiconductors 

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • A. K. Atayan
    • 1
  • E. M. Kazaryan
    • 2
  • A. V. Meliksetyan
    • 1
  • H. A. Sarkisyan
    • 1
    • 2
  1. 1.Yerevan State UniversityYerevanArmenia
  2. 2.Russian-Armenian UniversityYerevanArmenia

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