Ultrasonic studies of attenuation and dispersion in NH4Br near the order-disorder transition

C. W. Garland, G. Gorodetsky, D. Moreno, J. Pelleg

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Velocity and attenuation of sound wave propagation along the [100] direction in NH4Br were measured near its transition temperature Tc = 234.5 K at frequencies of 30-150 MHz. The experimental results for the high-frequency attenuation and the dispersive velocity shifts are found to be in good agreement with the model of a single critical relaxation time.

Original languageEnglish
Pages (from-to)863-865
Number of pages3
JournalSolid State Communications
Volume40
Issue number9
DOIs
StatePublished - 1 Jan 1981

ASJC Scopus subject areas

  • Chemistry (all)
  • Condensed Matter Physics
  • Materials Chemistry

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