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.
Possible spin liquid state in a novel triangular lattice antiferromagnet
Abstract: An intricate interplay between emergent degrees of freedom in rare-earth-based geometrically frustrated magnets represents a promising platform for the search for enigmatic quantum spin liquids (QSL). Our recent study on a novel class of structurally perfect rare-earth-based triangular lattice family has revealed NdTa7O19 as a promising candidate for a QSL stabilized by the strong Ising anisotropy. Herein, we focus on a novel triangular lattice antiferromagnet HoTa7O19, from this family. Our preliminary magnetization and specific heat data do not show any signature of spin-freezing or magnetic ordering down to 75 mK despite a sizable antiferromagnetic interaction, Jex? 2 K between Ho3+ spins. Interestingly, the specific heat data shows a broad maximum around 1 K and another broad anomaly at 0.2 K possibly related to short-range spin correlations. This calls for more sensitive local-probe magnetic investigations that could unambiguously confirm the spin-liquid ground state and characterize the corresponding magnetic excitations at very low temperatures. Given the strongly localized nature of 4f orbitals, the exchange interactions of this rare-earth frustrated magnet are typically in the sub-Kelvin range. We plan to conduct the ?SR experiment in the millikelvin range to investigate the possible spin liquid state and associated excitations.
Principal Investigator: Dr Panchanana Khuntia
Experimenter: Dr Andrej Zorko
Experimenter: Dr Peter Baker
Local Contact: Dr James Lord
Experimenter: Mr Kevin Jakseti?
DOI: 10.5286/ISIS.E.RB2520417
ISIS Experiment Number: RB2520417
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520417-1 | MUSR | 17 December 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:
Dr Panchanana Khuntia et al; (2025): Possible spin liquid state in a novel triangular lattice antiferromagnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520417
Data is released under the CC-BY-4.0 license.
