ISIS Neutron and Muon Source Data Journal

Phonon dispersion and defects in pyrochlores

Abstract: Pyrochlores exhibit a rich variety of exotic physical properties including fractionalization, topological order and emergent magnetic monopoles in the classical spin ices, and a Higgs transition to a ferromagnetic phase for their quantum analogues. The magnetic ground states of these systems are strongly sample dependent, suggesting a key role for defects. Understanding the phonons allows us to predict stable defect structures and model the strain-field relaxation around defects. The absence of a complex magnetic ground state in yttrium titanate greatly simplifies density-functional calculations, and here we propose to test our lattice dynamics model using inelastic neutron scattering.

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

DOI: 10.5286/ISIS.E.RB1510176

ISIS Experiment Number: RB1510176

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 Jon Goff et al; (2015): Phonon dispersion and defects in pyrochlores, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510176

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