The European Physical Journal B

, Volume 63, Issue 4, pp 485–492

Magneto-absorption in cylindrical quantum dots

Authors

  • A. K. Atayan
    • Yerevan State University
  • E. M. Kazaryan
    • Russian-Armenian University
  • A. V. Meliksetyan
    • Yerevan State University
    • Yerevan State University
    • Russian-Armenian University
Article

DOI: 10.1140/epjb/e2008-00247-1

Cite this article as:
Atayan, A.K., Kazaryan, E.M., Meliksetyan, A.V. et al. Eur. Phys. J. B (2008) 63: 485. doi:10.1140/epjb/e2008-00247-1

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 compounds73.61.Ey III–V semiconductors

Copyright information

© Springer-Verlag 2008