Ultrasonic attenuation near the 208-K phase transition of RbAg4I5

K. M. Leung, D. L. Huber

    Research output: Contribution to journalArticlepeer-review


    Using general expressions for the velocity and ultrasonic attenuation coefficient we have analyzed ultrasonic data for the 208-K phase transition in RbAg4I5. From fitting the velocity in the high-temperature phase we obtain values for the strain and pseudospin coupling constants. We extract the intrinsic pseudospin relaxation rate from an analysis of the attenuation. The Jahn-Teller model is found to provide a good description of the ultrasonic behavior associated with the phase transition.

    Original languageEnglish (US)
    Pages (from-to)452-456
    Number of pages5
    JournalPhysical Review Letters
    Issue number7
    StatePublished - 1979

    ASJC Scopus subject areas

    • General Physics and Astronomy


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