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.
Spin-wave study of a new pyrochlore Heisenberg antiferromagnet - Gd2Pt2O7
Abstract: We propose a study of the spin-waves of a newly synthesised AF pyrochlore antiferromagnet, Gd2Pt2O7 on LET in zero field. Previous polarized neutron diffraction experiments on our isotopically enriched sample reveal a low temperature co-planar k=0 magnetic structure, akin to Gd2Sn2O7. However further near neighbour exchanges via the 5d Pt eg orbitals are likely, manifesting in an enhanced T_N. Monte-Carlo modelling of the paramagnetic S(Q) supports this picture, but direct measurements of the spin-waves are now required to quantify the level of further near neighbour exchange. We have a 0.25 g sample, which from previous experience (on Gd2Ti2O7 samples of similar mass on CNCS and DCS) is sufficient mass to see the spin waves. We ask for 2 days on LET to complete this study.
Local Contact: Dr Ross Stewart
Experimenter: Mr Philip Welch
Experimenter: Dr Jason Gardner
DOI: 10.5286/ISIS.E.RB1920232
ISIS Experiment Number: RB1920232
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB1920232-1 | LET | 12 November 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 Ross Stewart et al; (2019): Spin-wave study of a new pyrochlore Heisenberg antiferromagnet - Gd2Pt2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920232
Data is released under the CC-BY-4.0 license.
