ISIS Neutron and Muon Source Data Journal

Effect of oxygen vacancies on the phonon dispersion of pyrochlores

Abstract: The frustrated magnetism of pyrochlores makes them candidates for applications in magnetic cooling and scientific instrumentation, and the proposal that they can be used to manipulate isolated magnetic monopoles has generated huge scientific and technological interest. The roles of structural defects are key to understanding the low-temperature properties of these materials. Defective pyrochlores are also of interest for fuel cells, catalysts for lithium-oxygen batteries, and their resistance to radiation damage makes them attractive materials for radioactive waste storage. The phonon dispersions from this class of material display anomalous features which are attributed to the presence of defects. We now plan to study a large, highly defective crystal using inelastic neutron scattering in order to determine the effect of oxygen vacancies on the lattice dynamics.

Principal Investigator: Professor Jon Goff
Experimenter: Dr Keith Refson
Experimenter: Mr David Bowman
Experimenter: Dr Dharmalingan Prabhakaran
Experimenter: Dr David Voneshen
Local Contact: Dr Ross Stewart

DOI: 10.5286/ISIS.E.RB1520321

ISIS Experiment Number: RB1520321

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Professor Jon Goff et al; (2015): Effect of oxygen vacancies on the phonon dispersion of pyrochlores, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520321

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