ISIS Neutron and Muon Source Data Journal

Single Crystal Scattering Study of 163-Dy2Ti2O7 Using SXD

Abstract: Spin ice materials are a class of compounds with exotic magnetic properties, resulting from the frustration. Magnetic monopoles have been detected at low temperature; manifest as quasi-particle excitations. A specific heat study of the natural abundance of Dy2Ti2O7 found an upturn at long timescales (>10000 s) below 0.6 K, suggesting the emergence of previously unobserved ordering, and the break-down of the spin ice phase. We have studied the specific heat of 162,163 and the natural abundance and find no evidence for this phase transition. However, when we implement corrections for the hyperfine interaction, we find some difference between 162 and 163. One explanation for the difference in specific heat is a difference in the oxygen defect structures. Having already studied 162 on SXD, we propose a diffuse scattering study of 163 to explain our data.

Principal Investigator: Dr Sean Giblin
Experimenter: Professor Steven Bramwell
Experimenter: Dr Pascal Manuel
Experimenter: Mr Lewis Edwards
Experimenter: Dr Tom Fennell
Local Contact: Dr Silvia Capelli

DOI: 10.5286/ISIS.E.RB1810623

ISIS Experiment Number: RB1810623

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 Sean Giblin et al; (2018): Single Crystal Scattering Study of 163-Dy2Ti2O7 Using SXD, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810623

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