ISIS Neutron and Muon Source Data Journal

Measurement of vibrational spectra in high-thermal-conductivity ceramics

Abstract: In high-voltage electronics, heat dissipation is a major challenge. Ideally the materials in these devices will have a high thermal conductivity; a property determined by vibrations in the material. In order to improve understanding of these materials and develop better alternatives, it is helpful to have a good theoretical model of these vibrations: available approaches include force-fields, tight-binding and density-functional theory. These simulations may be compared to and calibrated against spectra from Raman measurements and inelastic neutron scattering. We propose temperature-dependent measurements of the vibrational spectra of SiC (an established material) and Ga2O3 (an emerging material) using TOSCA, in order to verify and improve simulations of the dynamics in these systems. This is linked to development of the Abins software used for simulating TOSCA spectra.

Principal Investigator: Dr Adam Jackson
Local Contact: Dr Sanghamitra Mukhopadhyay

DOI: 10.5286/ISIS.E.RB2010453

ISIS Experiment Number: RB2010453

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 Adam Jackson et al; (2020): Measurement of vibrational spectra in high-thermal-conductivity ceramics, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010453

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