Temperature Dependence of Electron Mean Free Path in Molybdenum from Ultrasonic Measurements

  • D. P. Almond
  • D. A. Detwiler
  • J. A. Rayne

Abstract

The electronic contribution to the attenuation of sound waves is dependent on the product a = qℓ, q being the phonon wave number and ℓ the electron mean free path.1 For qℓ » 1, the attenuation parameter \(\frac{\alpha }{\nu }\) ν being the phonon frequency, is independent of qℓ. In general, the attenuation at arbitrary qℓ can be expressed in the form
$$\frac{\alpha }{\nu } = \mathop {\lim }\limits_{q\ell \to \infty } \left( {\frac{\alpha }{\nu }} \right){\text{ }}P\left( {q\ell } \right)$$
(1)
where P(qℓ) tends to unity for large qℓ.

Keywords

Attenuation Propa Molybdenum 

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References

  1. 1.
    A. B. Pippard, Proc. Roy. Soc. (London) A257, 165 (1960).MathSciNetADSGoogle Scholar
  2. 2.
    C. K. Jones and J. A. Rayne, Physics Letters 13, 282 (1964).ADSCrossRefGoogle Scholar
  3. 3.
    J. M. Ziman, Electrons and Phonons, Oxford University Press 1960, p. 417.Google Scholar

Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • D. P. Almond
    • 1
  • D. A. Detwiler
    • 1
  • J. A. Rayne
    • 1
  1. 1.Carnegie-Mellon UniversityPittsburghUSA

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