Acoustic phonons in the hexagonal perovskite CsNiCl3 around the Gamma-point

D. Visser, A.R. Monteith, H.M. Rønnow, W.J.A. Maaskant

    Research output: Contribution to journalJournal articleResearchpeer-review


    The acoustic phonon dispersion curves of the hexagonal perovskite CsNiCl3 were measured at room temperature in the vicinity of the Gamma-point along the [0 0 1] and [1 1 0] directions. The derived velocity of sound values for the longitudinal and transverse acoustic phonons are compared with the velocity of sound values from ultrasound and Brillouin scattering measurements as well as model calculations using the GULP code. (C) 2000 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Pages (from-to)302-304
    Publication statusPublished - 2000


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