Overhauser-Shift of the ESR in the Two-Dimensional Electron Gas of GaAs-AlGaAs Heterostructures

  • M. Dobers
  • K. v. Klitzing
  • J. Schneider
  • G. Weimann
  • K. Ploog
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)


The study of electron spin resonance (ESR) of the two-dimensional conduction electrons in GaAs-A1GaAs-heterostructures [1,2] revealed a strong coupling between electronic and nuclear spins. This coupling results in a dynamical nuclear spin polarization [3,4] and hence reciprocally in a shift of the ESR-line, the Overhauser-shift [5,6,3]. These effects together with very long nuclear spin relaxation times give rise to hysteresis and instabilities in the ESR. By applying radio frequencies in order to perform nuclear magnetic resonance (NMR) we have been able to detect, as well as ESR, also NMR in the magnetoresistivity ρ xx of GaAs-AlGaAs-heterostructures.


Nuclear Magnetic Resonance Electron Spin Resonance Nuclear Spin Relaxation Zeeman Term Electron Spin Reso 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • M. Dobers
    • 1
  • K. v. Klitzing
    • 1
  • J. Schneider
    • 2
  • G. Weimann
    • 3
  • K. Ploog
    • 1
  1. 1.Max-Planck-Institut für FestkörperforschungStuttgart 80Fed. Rep. of Germany
  2. 2.Fraunhofer Institut für Angewandte FestkörperphysikFreiburgFed. Rep. of Germany
  3. 3.Walter-Schottky-InstitutTUMGarchingGermany

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