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Monte-Carlo Calculated Nonequilibrium Phonon Pulses in GaAs

  • D. V. Kazakovtsev
  • B. A. Danilchenko
  • I. A. Obukhov
Chapter

Abstract

Time-of-flight spectra for nonequilibrium phonons in GaAs crystals are obtained by Monte-Carlo simulation procedure. The calculations use the quasi-isotropic Tamura model for anharmonic phonon decay and the Rayleigh w-4 law for isotope scattering. The obtained spectra demonstrate a transition from the ballistic regime to quasidiffusive propagation regime via quasiballistic one as the anharmonic lifetime of phonons is changed. In spite of the intermode conversion time being short, the pulse shapes are different for the starting phonon of LA and TA mode.

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References

  1. [1]
    Ulbrich R.G., in “Nonequilibrium Phonon Dynamics”, Ed. by W.E. Bron, Plenum Press, New York (1985), pp. 3–26.Google Scholar
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    B.A. Danilchenko, V.N. Poroshin, M.I. Slutskii, M. Ashe, phys. stat. sol. (b) 136, 63 (1986).ADSCrossRefGoogle Scholar
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    M.T. Ramsbey, J.P. Wolfe, S. Tamura, Z. Phys. B — Condensed Matter 77, 209 (1989)CrossRefGoogle Scholar
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    S. Tamura, Phys. Rev. B.31, 2574 (1985).ADSGoogle Scholar

Copyright information

© Plenum Press, New York 1994

Authors and Affiliations

  • D. V. Kazakovtsev
    • 1
  • B. A. Danilchenko
    • 2
  • I. A. Obukhov
    • 2
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovka, Moscow RegionRussia
  2. 2.Institute of PhysicsUkrainian Academy of SciencesKievUkraine

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