Phonon Stopbands in Amorphous Superlattices

  • O. Koblinger
  • J. Mebert
  • E. Dittrich
  • S. Döttinger
  • W. Eisenmenger
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 68)

Abstract

The development of thin film technology in the last years made it possible to prepare periodic multilayer structures, consisting of alternating very thin crystalline or amorphous films of about nm thicknesses. The periodic structure of such multilayers is the origin of some new properties of those “superlattices” [1]. The acoustic properties of superlattices have been widely studied with resonant raman scattering techniques. Because of the coupling mechanism, in this method only longitudinal phonons are involved. Spectroscopy with superconducting tunnel junctions as generators and detectors of high-frequency acoustic phonons was first used to demonstrate a stopband like behaviour of a GaAs/AlxGa1-x As superlattice, prepared by using MBE techniques [2].

Keywords

Quartz Helium Paration 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • O. Koblinger
    • 1
  • J. Mebert
    • 1
  • E. Dittrich
    • 1
  • S. Döttinger
    • 1
  • W. Eisenmenger
    • 1
  1. 1.Physikalisches InstitutUniversität StuttgartStuttgart 80Fed. Rep. of Germany

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