Phonon Absorption Due to Two-Level Systems in Metallic Glasses

  • N. Thomas
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 51)

Abstract

Phonons in metallic glasses at low temperatures are scattered by two-level systems (TLS) arising from atomic tunnelling states [1, 2]. The TLS themselves are heavily damped by inelastic scattering of conduction electrons [1,2], and phonon absorption by these TLS cannot realistically be treated using elementary perturbation theory. A more sophisticated theory has been developed [3] to describe resonant phonon scattering by heavily damped TLS and this is extended here to include relaxation absorption.

Keywords

Acoustics 

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Reference

  1. 1.
    B. Golding, J.E. Graebner, A.B. Kane and J.L. Black: Phys. Rev. Lett. 41, 1487 (1978)CrossRefADSGoogle Scholar
  2. 2.
    J.L. Black: in Glassy Metals I (eds. H.J.Güntherodt and H. Beck, Springer 1981 )Google Scholar
  3. 3.
    N. Thomas: Phil. Mag. B (in press)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • N. Thomas
    • 1
  1. 1.Physics DepartmentBirmingham UniversityBirminghamEngland

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