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Correlated atomic motions in liquid deuterium fluoride studied by coherent quasielastic neutron scattering
journal contribution
posted on 2023-06-08, 08:13 authored by F Fernandez-Alonso, S E McLain, J W Taylor, FJ Bermejo, I Bustinduy, M D Ruiz-Martin, John TurnerJohn TurnerThe collective dynamics of liquid deuterium fluoride are studied by means of high-resolution quasielastic and inelastic neutron scattering over a range of four decades in energy transfer. The spectra show a low-energy coherent quasielastic component which arises from correlated stochastic motions as well as a broad inelastic feature originating from overdamped density oscillations. While these results are at variance with previous works which report on the presence of propagating collective modes, they are fully consistent with neutron diffraction, nuclear magnetic resonance, and infrared/Raman experiments on this prototypical hydrogen-bonded fluid.
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Publication status
- Published
Journal
Journal of Chemical PhysicsISSN
0021-9606Publisher
AIPExternal DOI
Issue
23Volume
126Department affiliated with
- Chemistry Publications
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Article Number: 234509Full text available
- No
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- Yes
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2012-02-06Usage metrics
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