ISIS Neutron and Muon Source Data Journal

Study of phonon density of states in PGEC titanate thermoelectrics

Abstract: To understand the thermal conductivity suppression within PGEC titanate oxide thermoelectrics we hope to complement theoretical calculations performed on several perovskites with measurement of phonon dispersions through inelastic neutron scattering. The samples are ready to be measured and have well characterised structures (I11, HRPD) and properties (thermal & electronic transport), published recently. Measurements over a range of temperatures will allow us to probe their anharmonic nature shown by calculations to emerge at 30 K and understand how this influences thermal conductivities of both phonon-crystal and phonon-glass materials. This combination of experiment and theory will provide a new understanding of correlations between electronic and thermal transport within these materials and directly link theoretical calculations with the design and discovery of better thermoelectrics.

Principal Investigator: Dr Jonathan Alaria
Local Contact: Dr Duc Le
Local Contact: Dr Tatiana Guidi
Experimenter: Dr Matthew Rosseinsky
Experimenter: Dr Luke Daniels

DOI: 10.5286/ISIS.E.RB1820439

ISIS Experiment Number: RB1820439

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 Jonathan Alaria et al; (2019): Study of phonon density of states in PGEC titanate thermoelectrics, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820439

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