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 chiral classical spin liquid ground state in a tetra-trillium lattice antiferromagnet K2Fe2(MoO4)(PO4)2
Abstract: Quantum materials, wherein frustration, electronic band topology, spin correlations, and their interplay exist, can harbor a panoply of novel quantum states, including quantum spin liquids (QSLs), spin ices, and fractional quantum Hall liquids. Theoretical calculations suggest various QSL types depending on spin-lattice symmetry, including the chiral spin liquid (CSL), which lacks long-range order but breaks both time-reversal and parity symmetries. The experimental realization of the CSL state in magnetic materials, however, remains a significant challenge. Here, we focus on a new chiral network of tetra-trillium lattice of Fe3+ ions. Neither magnetic susceptibility nor specific-heat data show any signature of magnetic ordering down to 1.9 K despite a large Curie-Weiss temperature of - 44 K. The magnetic specific heat indicates the presence of short-range spin correlations and a gapless spin excitation spectrum. We propose a muSR study much below the sub-Kelvin temperatures to unambiguously confirm the ground state of classical CSL and identify the associated magnetic excitations in this new three-dimensional frustrated magnet.
Principal Investigator: Mr Joydev Khatua
Local Contact: Dr John Wilkinson
Experimenter: Professor KwangYong Choi
Experimenter: Mr TaeYun Kim
Local Contact: Dr Peter Baker
DOI: 10.5286/ISIS.E.RB2510135
ISIS Experiment Number: RB2510135
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510135-1 | MUSR | 08 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:
Mr Joydev Khatua et al; (2025): Possible chiral classical spin liquid ground state in a tetra-trillium lattice antiferromagnet K2Fe2(MoO4)(PO4)2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510135
Data is released under the CC-BY-4.0 license.
