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.
Low temperature muSR study of a cation ordered quantum spin liquid
Abstract: Honeycomb lattices of magnetic cations can be generated within the cubic ABO3 perovskite structure by alternating one layer of non-magnetic cations and two layers of magnetic ions in the cubic-[111] direction giving rise to A3BB?2O9 materials with the trigonal P-3m1 3C1:2 (Ba3SrTa2O9-type) structure. We are exploring 3C1:2-Ba3CaRu2O9 made by pressure transformation of a 6H precursor. Magnetic and heat capacity measurements show strong evidence for QSL behaviour with no magnetic transitions down to 50 mK despite a Weiss temperature ~ -35 K. Powder neutron diffraction data (collected recently from WISH, RB2220036) confirm that no magnetic ordering or structural phase transition occurs down to 1.5 K. Given the low magnetic moment (?eff = 1 ?B) and the disordered, most likely dynamic nature of the ground state, muon spin relaxation (?SR) is an ideal tool to further investigate the magnetic properties. The EMU spectrometer will be needed in fly past mode as the sample is small and we request 3 days to study the muon spin relaxation in zero field as well as at a few applied longitudinal fields. We will perform a detailed temperature dependence scan of the relaxation rate down to the lowest measurable temperatures with a dilution refrigerator. The results from this experiment are necessary in order to clarify our previous results and to strengthen our understanding of the magnetic ground state of this novel QSL candidate material.
Experimenter: Mr Michael Milton
Experimenter: Dr Pascal Manuel
Experimenter: Dr Koji Yokoyama
Experimenter: Professor Paul Attfield
Local Contact: Dr Adam Berlie
DOI: 10.5286/ISIS.E.RB2310098
ISIS Experiment Number: RB2310098
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2310098-1 | EMU | 09 October 2026 | 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:
Mr Michael Milton et al; (2023): Low temperature muSR study of a cation ordered quantum spin liquid, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310098
Data is released under the CC-BY-4.0 license.
