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Quantum Hall Effect Experiments Using Ballistic Phonons

  • J. P. Eisenstein
  • V. Narayanamurti
  • H. L. Stormer
  • A. Y. Cho
  • J. C. M. Hwang
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 68)

Abstract

The intense interest over the last few years in the quantum Hall effect[1], occuring in the 2-D electron gas (2DEG), has been sustained largely by electronic transport measurements. For example, the prediction of a gap in the spectrum of elementary excitations of the fractionally quantized 2DEG has been tested only via observation of activated conductivity. No spectroscopic measurement of the gap has been made. We outline here a new phonon spectroscopy technique for the study of the 2-D electron gas and present data on the integrally quantized 2DEG.

Keywords

Landau Level Tunnel Junction Heat Pulse Quantum Hall Effect Roton Minimum 
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References

  1. 1.
    For a recent review see H.L. Stornier, Festkorperprobleme, Adv. in Sol. State Phys. XXIV, 25 (1983) ed. P. Grosse, Vieweg, BraunschwiegGoogle Scholar
  2. 2.
    H.J. Maris, Rev. Mod. Phys. 49, 341 (1977)CrossRefADSGoogle Scholar
  3. 3.
    R. C. Dynes and V. Narayanamurti, Phys. Rev. B, 12, 1720 (1975)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • J. P. Eisenstein
    • 1
  • V. Narayanamurti
    • 1
  • H. L. Stormer
    • 1
  • A. Y. Cho
    • 1
  • J. C. M. Hwang
    • 1
  1. 1.AT & T Bell LaboratoriesMurray HillUSA

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