Ultrasonic Study of Three La2−ySryCuO4+x Crystals

  • J.-Y. Prieur
  • H. Ji
  • R. Höhler
  • J. Joffrin
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 112)

Abstract

We present the results of an ultrasonic study of three monocrystals of La2−ySryCuO4+x.. Longitudinal and transverse waves have been used along a or c direction at 30 and 90 MHz. For each sample four contributions reproduce the experimental data. The main one is the phonon-phonon interaction, two relaxations are identified and the tetragonal to orthorhombic transition gives an additional critical variation satisfying well defined selection rules.

Keywords

Sine Strontium Lanthanum 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • J.-Y. Prieur
    • 1
  • H. Ji
    • 1
  • R. Höhler
    • 1
  • J. Joffrin
    • 1
  1. 1.Laboratoire de Physique des SolidesUniversité Paris-SudOrsayFrance

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