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 dynamics in the double-pyrochlore compound Er2Ru2O7
Abstract: Er2Ru2O7 possesses a cubic pyrochlore structure with Ru4+ and Er3+ orderings reported at 90 K and 10 K respectively. However, below 20 K neutron diffraction shows the polarization of Er3+ induced by the internal field of Ru4+ until the Er3+ following q = 0 magnetic structure at 3 K, while the magnetic moment significantly increases below 10 K; but even at 5 K, Er3+ still remains dynamic [1]. Intriguingly, neutron diffraction spectrum of Er2Ru2O7 reveals an exotic magnetic structure which does not follow conventional q = 0 magnetic order of pyrochlore lattice symmetry at 270 mK [2]. We propose to use muon spectroscopy to study the spin dynamics in a polycrystalline sample Er2Ru2O7 for all temperature ranges from 100 K down to 1.8 K on MuSR. This work will allow us to investigate the orderings and dynamics of both the Ru and Er moments, as well as the interplay between the two magnetic sublattices which may lead to the realization of a magnetic symmetry broken in a canonical XY magnet of Er2Ti2O7 [3]. Er2Ti2O7 had been studied successfully at ISIS using pulsed muon source [4]. To our knowledge, Er2Ru2O7 had been studied rarely, and had never been studied by muons before.
Principal Investigator: Professor Lieh-Jeng Chang
Local Contact: Dr Alex Louat
Experimenter: Dr Dita Puspita Sari
Experimenter: Dr Shinichi Shamoto
Experimenter: Dr Adrian Hillier
Experimenter: Dr Isao Watanabe
DOI: 10.5286/ISIS.E.RB2510512
ISIS Experiment Number: RB2510512
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510512-1 | MUSR | 16 July 2028 | 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],
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For Example:
Professor Lieh-Jeng Chang et al; (2025): Spin dynamics in the double-pyrochlore compound Er2Ru2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510512
Data is released under the CC-BY-4.0 license.
