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.
Determining Microscopic Origins of the Thermal Hall Effect in Tb2Ti2O7
Abstract: Studies of thermal Hall effects in insulating materials ascribe its microscopic origins to charge-neutral bosonic carriers generated by non-zero Berry curvature in the wavefunctions of their excitations. In the pyrochlore Tb2Ti2O7, a large thermal Hall effect was found in its cooperative paramagnetic phase that is suppressed by field-induced order. If the thermal Hall effect originates from the Berry curvature generated by exchange coupled crystal field excitons, it should be visible in the applied field-evolution of the full dispersion. We propose to use LET to investigate the low energy portion of Tb2Ti2O7's exciton band structure in both the cooperative paramagnet and ordered phases up to 9 T.
Principal Investigator: Dr Tom Fennell
Experimenter: Ms Alexandra Turrini
Local Contact: Dr Rob Bewley
DOI: 10.5286/ISIS.E.RB1910146
ISIS Experiment Number: RB1910146
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB1910146-1 | LET | 19 June 2022 | Download |
| 10.5286/ISIS.E.RB1910146-2 | ALF | 14 June 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 Tom Fennell et al; (2019): Determining Microscopic Origins of the Thermal Hall Effect in Tb2Ti2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910146
Data is released under the CC-BY-4.0 license.
