ISIS Neutron and Muon Source Data Journal

Phonon dynamics in liquid gallium

Abstract: We propose to measure the inelastic scattering S(Q,E) maps from gallium in its liquid phases across a wide range of temperatures. This proposal is based on a new prediction for the existence of transverse acoustic modes that show a gap in wave vector at zero energy. Performing an inelastic neutron scattering measurement at ISIS will give us a much richer data set than possible from only x-ray scattering, including obtaining data at higher values of Q, and enable us to use our new analysis tools to relate the observations with the dynamics of local atomic arrangements. We expect this work coupled with the data from inelastic x-ray scattering to lead to nothing short of a revolution in how we understand the differences between liquid and crystalline phases.

Principal Investigator: Professor Martin Dove
Experimenter: Mr Cillian Cockrell
Experimenter: Dr Kostya Trachenko
Experimenter: Mr Anders Jensen
Experimenter: Dr Oliver Dicks
Local Contact: Dr Duc Le
Experimenter: Dr Franz Demmel
Experimenter: Miss Ling Wang

DOI: 10.5286/ISIS.E.RB1820566

ISIS Experiment Number: RB1820566

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Martin Dove et al; (2019): Phonon dynamics in liquid gallium, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820566

Data is released under the CC-BY-4.0 license.