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Evidence for Virtual Phonon Exchange Between 2-D Electron Gases

  • T. J. Gramila
  • J. P. Eisenstein
  • A. H. Macdonald
  • L. N. Pfeiffer
  • K. W. West
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 112)

Abstract

This paper reviews our study of the interaction of phonons with two-dimensional electron gases (2DEG) using a direct probe of electron-electron (e-e) scattering rates. We find evidence for an e-e scattering process whose temperature and distance dependence strongly suggest a phonon-mediated interaction. The magnitude of the scattering rates, however, are much greater than can be accounted for by real phonon exchange. Instead, we argue that we have directly detected scattering due to the exchange of virtual phonons.

Keywords

Layer Spacing Double Quantum Distance Dependence Barrier Thickness Coulomb Scat 
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References

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    P. J. Price, Solid State Commun. 51, 607 (1984).ADSCrossRefGoogle Scholar
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    T. J. Gramila et al.,to be published.Google Scholar
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    H. C. Tso, P. Vasilopoulos, and F. M. Peeters, Phys. Rev. Lett. 68 (1992) 2516, and A. H. MacDonald et al, (to be published).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • T. J. Gramila
    • 1
  • J. P. Eisenstein
    • 1
  • A. H. Macdonald
    • 2
  • L. N. Pfeiffer
    • 1
  • K. W. West
    • 1
  1. 1.AT&T Bell LaboratoriesMurray HillUSA
  2. 2.Department of PhysicsIndiana UniversityBloomingtonUSA

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