The Influence of Impurities on the Shubnikov-De Haas and Hall Resistance of Two-Dimensional Electron Gases in GaAs/AlxGa1-xas Heterostructures Investigated by Back-Gating and Persistent Photoconductivity

  • J. Wolter
  • F. A. P. Blom
  • P. Koenraad
  • P. F. Fontein
  • G. Weimann
Part of the NATO ASI Series book series (NSSB, volume 183)


It is well-known that in the Quantum-Hall (QH) regime the Shubnikov-de Haas (SdH) oscillations and the Hall resistance show a non-ohmic behaviour, which apparently is spin-dependent. We report on new measurements on this effect, which have been carried out with the help of a back-gate and by the use of the effect of persistent photoconductivity induced by light of out-gap energy.


Effective Mass Landau Level Current Dependence Hall Resistance Persistent Photoconductivity 
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Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • J. Wolter
    • 1
  • F. A. P. Blom
    • 1
  • P. Koenraad
    • 1
  • P. F. Fontein
    • 1
  • G. Weimann
    • 2
  1. 1.Department of PhysicsEindhoven University of TechnologyEindhovenThe Netherlands
  2. 2.ForschungsinstitutDeutschen Bundespost beim FTZDarmstadtGermany

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