ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Modelling the lattice dynamics of the lower mantle, an INS study on CaTiO3
Abstract: The travel times of seismic waves through the Earth's interior provide one of the only direct constraints of the chemistry and properties of the deep mantle. Calcium perovskite is the third most abundant mineral throughout the lower mantle (~ 700 - 3000 km depth in Earth), but because it is not stable at room conditions the speed that sound travels through this phase is almost completely unconstrained. We will perform inelastic neutron scattering measurements on MERLIN to measure the full phonon dispersion of the titanium end member of calcium perovskite. From this data we will extract the acoustic wave velocities in calcium perovskite between room temperature at ~ 1500 celsius, revealing whether its presence in the deep Earth may explain heterogeneous seismic signals that are currently not understood.
Principal Investigator: Dr Andrew Thomson
Experimenter: Dr Kevin Knight
Experimenter: Dr David Voneshen
DOI: 10.5286/ISIS.E.RB1910251
ISIS Experiment Number: RB1910251
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB1910251-1 | MERLIN | 07 July 2022 | Download |
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:
Dr Andrew Thomson et al; (2019): Modelling the lattice dynamics of the lower mantle, an INS study on CaTiO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910251
Data is released under the CC-BY-4.0 license.
