ISIS Neutron and Muon Source Data Journal

Quantum Spin Ice ground states and Structural Disorder in non-Kramers rare-earth pyrochlores

Abstract: Pyrochlore oxides based on non-Kramers rare-earth ions, such as Pr3+ and Tb3+, are candidate materials for the formation of the Quantum Spin Ice. However, structural disorder is thought to be determinant in the selection of this exotic magnetic ground state. Slight level of disorder can indeed induce transverse fields on the Ising spin variable and turn a classical spin ice into a quantum spin ice. When disorder and thus transverse fields are stronger, the Ising spin variables become essentially electric quadupolar degrees of freedom, and the system remains paramagnetic. It is thus of paramount importance to establish detailed knowledge on the type and density of disorder in such materials. We want to finely characterise disorder in our existing samples of Pr2Zr2O7, Pr2ZHf2O7 and Tb2Hf2O7, for all of which showing signatures of quantum spin physics in low-energy neutron spectroscopy.

Principal Investigator: Dr Romain SIBILLE
Experimenter: Mr Victor Porée
Local Contact: Professor David Keen
Experimenter: Dr Elsa LHOTEL
Experimenter: Dr Sylvain Petit
Experimenter: Dr Tom Fennell

DOI: 10.5286/ISIS.E.RB1910486

ISIS Experiment Number: RB1910486

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 Romain SIBILLE et al; (2019): Quantum Spin Ice ground states and Structural Disorder in non-Kramers rare-earth pyrochlores, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910486

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