Anisotropy of Phonon Emission from Hot Electrons in Germanium

  • W. Reupert
  • K. Lassmann
  • P. de Groot

Abstract

We have measured quantitatively the anisotropy of the electron — acoustical phonon scattering in n-germanium in five directions of the (110) plane utilizing tunneling junctions for calibrated detection of the phonon radiation emitted from a small avalanche breakdown region in the germanium surface. For comparison and evaluation of phonon focusing a constantan heater and a tunneling junction were also used as phonon sources. A similar experiment has been reported by A. Zylbersztejn /1/, but he could only compare the ratio of the amplitudes of longitudinal and transverse phonon pulses in a given crystal direction to the calculation.

Keywords

Anisotropy Helium Germanium 

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References

  1. /1/.
    A. Zylbersztejn, Proc. 10th Int. Conf. Semiconductors p 134 (70)Google Scholar
  2. /2/.
    E. Conwell, Phys. Rev. 135, A814 (64)Google Scholar
  3. /3/.
    C. Herring and E. Vogt, Phys. Rev. 101, 944 (56)Google Scholar
  4. /4/.
    B. Taylor, H.J. Maris, and C. Elbaum, Phys. Rev. B3, 1462 (71)Google Scholar

Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • W. Reupert
    • 1
  • K. Lassmann
    • 1
  • P. de Groot
    • 1
  1. 1.Physikalisches InstitutUniversität Stuttgart7 Stuttgart 80Germany

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