ISIS Neutron and Muon Source Data Journal

Spin dynamics and absence of magnetic order in the triangular lattice antiferromagnet Rb3Yb(VO4)2

Abstract: A quantum spin liquid (QSL) is a system of interacting spins for which quantum fluctuations prevent long-range magnetic order (LRO), even at zero temperature. Systems based on triangular lattices of Yb^{3+} are promising candidate QSLs, since this ion has an effective spin-1/2 Kramers doublet as its ground state. However, several previously example materials in this class suffer from chemical disorder, which could obscure the physics of the QSL state. Here we propose to study Rb3Yb(VO4)2, which comprises a perfect triangular lattice of Yb^{3+} without any disorder, and which exhibits no evidence of LRO. We will use zero-field muSR to confirm the absence of LRO. Longitudinal field muSR will then be used to study the dynamics of the diffusing spinons and compare these with the predictions of currently available theoretical models.

Principal Investigator: Dr Benjamin Huddart
Experimenter: Dr Hank C H Wu
Local Contact: Dr John Wilkinson
Experimenter: Dr Dipranjan Chatterjee
Experimenter: Professor Stephen Blundell
Experimenter: Dr Francis Pratt
Experimenter: Dr Ramesh Nath
Experimenter: Mr Ewan Thomas

DOI: 10.5286/ISIS.E.RB2610371

ISIS Experiment Number: RB2610371

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 Benjamin Huddart et al; (2026): Spin dynamics and absence of magnetic order in the triangular lattice antiferromagnet Rb3Yb(VO4)2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610371

Data is released under the CC-BY-4.0 license.