ISIS Neutron and Muon Source Data Journal

Probing glassy magnetic transitions in structurally disordered (defect fluorite Er2Zr2O7) and ordered (pyrochlore Er2Ir2O7) oxides.

Abstract: Cubic A2B2O7 oxides with A standing for a rare-earth element and B for a transition or main block metal have been systematically studied for their frequently exotic crystallographic and electronic properties. The majority of A2B2O7 compounds crystallize in a cubic pyrochlore or defect-fluorite structure. In the proposed experiment we focus on Er2B2O7 oxides with B = Zr and Ir, adopting defect-fluorite and pyrochlore structures, respectively. Despite structural differences, both the zirconate and iridate show surprisingly similar spin-glass-like magnetic transitions at low temperature. We aim to use muons to confirm and probe the spin-glass ground-state of these materials to help clarify how different frustrating processes (structural disorder in the fluorite structure vs. geometric frustration in the pyrochlore) can lead to similar magnetic properties.

Principal Investigator: Dr Ross Colman
Experimenter: Dr Milan Klicpera
Experimenter: Mrs Kristina Vlaskova
Local Contact: Dr Adam Berlie

DOI: 10.5286/ISIS.E.RB1920343

ISIS Experiment Number: RB1920343

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 Colman et al; (2019): Probing glassy magnetic transitions in structurally disordered (defect fluorite Er2Zr2O7) and ordered (pyrochlore Er2Ir2O7) oxides., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920343

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