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.
?SR study of Jeff = 1/2 frustrated triangular lattice antiferromagnet Ca3CoTa2O9
Abstract: We propose to study a Co -based frustrated triangular lattice antiferromagnetic compound Ca3CoTa2O9 (CCTO), which features a Jeff = 1/2 ground state at lower temperatures. The compound exhibits a sharp anomaly at 0.83 K in zero-field heat capacity, reflecting the onset of a magnetic long-range order. With the applied field, this transition is suppressed and disappears above 2 T. With a moderate frustration ratio f > 4 and enhanced quantum fluctuations due to Jeff = 1/2, Ca3CoTa2O9 provides an ideal platform to host exotic quantum phases, including quantum spin liquid, at low temperatures. We propose to measure a series of zero-field measurements at different temperatures down to 0.05 K, complemented by longitudinal decoupling scans to verify the presence of state and/or dynamic magnetic order.
Principal Investigator: Dr Ramesh Nath
Experimenter: Mr Akshay Karayil Thekkute Unnikrishnan
Local Contact: Dr Mark Telling
DOI: 10.5286/ISIS.E.RB2610079
ISIS Experiment Number: RB2610079
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2610079-1 | HIFI | 08 June 2029 | 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:
Dr Ramesh Nath et al; (2026): ?SR study of Jeff = 1/2 frustrated triangular lattice antiferromagnet Ca3CoTa2O9, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610079
Data is released under the CC-BY-4.0 license.
