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 new Jeff =1/2 triangular lattice antiferromagnet
Abstract: Quantum spin liquids (QSL) represent a highly entangled state of matter that lacks long-range magnetic order, despite strong exchange interactions between its magnetic constituents and host exotic fractional excitations. Rare-earth based frustrated triangular lattice antiferromagnets wherein a subtle interplay between competing degrees of freedom provides a novel route for realizing the enigmatic QSL state with fractional excitations. The recently synthesized a structurally perfect triangular lattice K3NdTe2O9 is a promising candidate in this context. The localized Nd3+ spins show neither magnetic order nor spin-freezing state down to 60 mK suggesting a dynamic state. Thermodynamic data reveal an effective Jeff = 1/2 (Nd3+) in the Kramers doublet state and a weak antiferromagnetic interaction Jex? 1 K between Jeff = 1/2 moments-typical for rare-earth based frustrated magnets owing to the localized nature of 4f orbitals. The magnetic specific heat shows an anomaly ~120 mK, however, the entropy release at this temperature doesn?t correspond to that expected for Jeff = ˝. This calls for a very sensitive local probe such as muon spin relaxation (µSR) that could unambiguously establish the ground state and associated magnetic excitations in the sub-Kelvin temperatures.
Principal Investigator: Dr Panchanana Khuntia
Experimenter: Dr Andrej Zorko
Experimenter: Mr Kevin Jakseti?
Local Contact: Dr Peter Baker
DOI: 10.5286/ISIS.E.RB2520437
ISIS Experiment Number: RB2520437
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520437-1 | MUSR | 19 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 new Jeff =1/2 triangular lattice antiferromagnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520437
Data is released under the CC-BY-4.0 license.
