Acoustic Phonons in Molten NaI

Shinya HOSOKAWA; Franz DEMMEL; Wolf-Christian PILGRIM; Masanori INUI; Satoshi TSUTSUI; Alfred Q. R. BARON

doi:10.5796/electrochemistry.77.608

Communications

Acoustic Phonons in Molten NaI

Shinya HOSOKAWA, Franz DEMMEL, Wolf-Christian PILGRIM, Masanori INUI, Satoshi TSUTSUI, Alfred Q. R. BARON

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Keywords: Alkali Halides, Inelastic X-ray Scattering, Phonons, Dispersion Relation

JOURNAL FREE ACCESS

2009 Volume 77 Issue 8 Pages 608-610

DOI https://doi.org/10.5796/electrochemistry.77.608

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Abstract

In order to investigate the phonon dynamics of molten NaI, inelastic X-ray scattering measurements were preformed near the melting point at the beamline BL35XU of the SPring-8. A fast sound mode exceeding the ultrasonic velocity of sound by about 45% was observed as in other molten alkali halides, which is in fairly good agreement with a scaling formula using the effective mass of the salt constituents.

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