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Time-Dependent Specific Heat of Crystals and Glasses at Low Temperatures

  • N. Sampat
  • M. Meissner
Chapter

Abstract

At low temperatures heat travels in solids predominantly by phonons. When a heat pulse is applied at the surface of a bulk sample, a hot phonon flux distribution propagates through the sample with the group velocity of sound. Depending on the static and dynamic properties of the solid, the thermal phonon equilibrium system interacts with the traveling phonon distribution. Below 1K, in a perfect dielectric crystal there is pure ballistic transport with no intrinsic scattering. In a glassy system, however, strong scattering processes exist due to anharmonic interactions and diffusive heat transport is observed.

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References

  1. [1]
    For a review, see G.A. Northrop and J.P. Wolfe, in “Non Equilibrium Phonon Dynamics”, ed. by W. E. Bron, Plenum, New York (1985).Google Scholar
  2. [2]
    For a review, see S. Hunklinger and A. K. Raychaudhuri, Prog. in Low Temp. Phys. 9, 265 (1986).Google Scholar
  3. [3]
    J.L. Black, Phys. Rev. B 17, 2740 (1978).Google Scholar
  4. [4]
    A.K. Raychaudhury and R.O. Pohl, Phys. Rev. B 25, 1310 (1982).Google Scholar
  5. [5]
    W. Knaak, Thesis, Technische Universität Berlin, unpublished (1986).Google Scholar
  6. [6]
    T. Klitsner and R.O. Pohl, Phys. Rev. B 36, 6551 (1987).ADSGoogle Scholar
  7. [7]
    W. Knaak, T. Hauss, M. Kummrow, and M. Meissner, in “Phonon Scattering in Condensed Matter V”, ed. by A.C. Anderson and J.P. Wolfe, Springer-Verlag, Berlin, p. 174 (1986).Google Scholar
  8. [8]
    T.F. McNelly, S.J. Rogers, D.J. Channin, R.J. Rollefson, W.M. Goubau, G.E. Schmidt, J.A. Krummhansl, and R.O. Pohl, Phys. Rev. Lett. 24, 100 (1970).ADSCrossRefGoogle Scholar
  9. [9]
    S. Kapphan, J. Phys. Chem. Sol. 35, 621 (1973).CrossRefGoogle Scholar
  10. [10]
    A.C. Anderson, in “Amorphous Solids”, ed. by W.A. Phillips, Springer-Verlag, Berlin, p. 65 (1981).Google Scholar
  11. [11]
    M.T. Loponen, R.C. Dynes, V. Narayanamurti, and J.P. Garno, Phys. Rev. Lett. 42, 457 (1980); Phys. Rev. B25, 1161 (1982).ADSCrossRefGoogle Scholar
  12. [12]
    P. Strehlow, W. Dreyer, and M. Meissner, in “Phonon Scattering in Condensed Matter VII”, ed. by M. Meissner and R.O. Pohl, Springer-Verlag, Berlin, p. 229 (1993).Google Scholar
  13. [13]
    W. Knaak and M. Meissner, in “Proc. 17th Int. Conf. Low Temp. Physics, LT-17”, ed. by U. Eckern, A. Schmid, W. Weber, and H. Wuhl, North-Holland, Amsterdam, p. 667 (1984).Google Scholar
  14. [14]
    J.J. DeYoreo, W. Knaak, M. Meissner, and R.O. Pohl, Phys. Rev. B 32, 6091 (1986).Google Scholar

Copyright information

© Plenum Press, New York 1994

Authors and Affiliations

  • N. Sampat
    • 1
  • M. Meissner
    • 1
  1. 1.Hahn-Meitner-Institut BerlinBerlinGermany

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