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The H-Band Luminescence of p-Type GaAs-(GaAl)As Heterostructures in High Magnetic Fields

  • W. Ossau
  • T. L. Kuhn
  • E. Bangert
  • G. Weimann
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)

Abstract

We have investigated p-type GaAs-(GaAl)As heterojunctions by low temperature photoluminescence experiments in magnetic fields up to 9.5 T. The H-band luminescence splits in two well resolved lines denoted as e- and d-line respectively. From the energy shift and the splitting-behaviour, we conclude that the a-line is emitted by the recombination of a (3D)-flat-band electron with a (2D)-hole confined in an excited subband near the interface. In the case of the d-line the electron stems from a donor.

Keywords

Magnetic Field Strength Energy Shift Conduction Band Electron Excitation Density Luminescence Line 
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References

  1. /1/.
    Y.R. Yuan, M.A.A. Pudensi, G.A. Vawter and J.L. Merz, J. Appl. Phys. 58, 397, 1985CrossRefGoogle Scholar
  2. /2/.
    Z.I. Alferov, A.M. Vasil’ev, P.S. Rop’ev, V.P. Kochereskho, I.N. Ural’tsev, A.L.Efros, D.R. Yakovlev, JETP Lett., 43, 569, 1986Google Scholar
  3. /3/.
    G.W. ’t Hooft, W.A.J.A. van der Poel, L.W. Molenkamp, C.T. Foxon, Appl. Phys. Lett. 50, 1388, 1987CrossRefGoogle Scholar
  4. /4/.
    H. Künzel, K. Ploog, Appl. Phys. Lett. 37,416, 1980CrossRefGoogle Scholar
  5. /5/.
    L. Eaves, M.S. Skolnick, D.P. Halliday, J.Phys. C 19, L445, 1986CrossRefGoogle Scholar
  6. /6/.
    W. Ossau, E. Bangert, G. Weimann, Solid State Commun., 64, 711, 1987CrossRefGoogle Scholar
  7. /7/.
    E. Bangert, G. Landwehr, Superlattices and Microstructures, 1, 363, 1985CrossRefGoogle Scholar
  8. /8/.
    W. Ossau, G. Mayer, A. Forchel, G. Weimann, to be publishedGoogle Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • W. Ossau
    • 1
  • T. L. Kuhn
    • 1
  • E. Bangert
    • 1
  • G. Weimann
    • 2
  1. 1.Physikalisches InstitutUniversität WürzburgWürzburgFed. Rep. of Germany
  2. 2.Walter Schottky InstitutTechnischen Universität MünchenGarchingFed. Rep. of Germany

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