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Il Nuovo Cimento (1955-1965)

, Volume 26, Issue 1, pp 43–52 | Cite as

Absorption of phonons by an electron gas

  • S. Rodriguez
  • K. Tharmalingam
Article

Summary

A study is made of the absorption of acoustic waves in metals considering the interaction of the motion of the ions of the crystal with the plasma formed by the conduction electrons. The attenuation of the sound waves is expressed in terms of the imaginary part of the dielectric constant for longitudinal waves and of the imaginary part of of the magnetic permeability for transverse waves. Expressions for both situations are found. They agree with the results obtained byPippard.

Riassunto

Si studia l’assorbimento delle onde sonore nei metalli tenendo conto dell’interazione del moto degli ioni del oristallo col plasma formato dagli elettroni di conduzione. L’attenuazione delle onde sonore è espressa per le onde longitudinal! in funzione della parte immaginaria della costante dielettrica e per le onde trasversali in funzione della parte immaginaria della permeabilità magnetica. Si trovano le espressioni per entrambi i casi. Ease concordano con i risultati ottenuti daPippard.

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Copyright information

© Società Italiana di Fisica 1962

Authors and Affiliations

  • S. Rodriguez
    • 1
  • K. Tharmalingam
    • 1
  1. 1.Princeton UniversityPrinceton

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