ISIS Neutron and Muon Source Data Journal

Crystal field excitations in the buckled-triangular antiferromagnet DyInO3

Abstract: DyInO3 is a rare-earth triangular lattice magnet that shows no signs of long-range magnetic order down to very low T, suggesting strong magnetic frustration and the possibility of a quantum spin liquid (QSL) state. Our previous characteriztion, including magnetic susceptibility, specific heat, electron spin resonance, and muon spin relaxation, all point toward unusual low-T spin dynamics likely influenced by crystal electric field (CEF) effects. In addition, our preliminary inelastic neutron scattering (INS) experiments on single-crystalline DyInO3 exhibit a clear excitation around 4 meV, which we attribute to a low-lying CEF level. However, no higher-energy excitations were detected, likely due to limited measurement time and the high neutron absorption of Dy and In. In this proposal, we request beamtime on the MERLIN spectrometer to carry out high-flux and high-efficiency INS measurements over a wider energy range and at several temperatures. We aim to determine the full CEF level scheme and clarify how it contributes to the magnetic anisotropy and frustration of the system. The results will help assess whether DyInO3 can be considered a promising candidate for a QSL state.

Principal Investigator: Dr Suheon Lee
Experimenter: Dr Devashi Adroja
Local Contact: Dr Duc Le

DOI: 10.5286/ISIS.E.RB2520019

ISIS Experiment Number: RB2520019

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 Suheon Lee et al; (2025): Crystal field excitations in the buckled-triangular antiferromagnet DyInO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520019

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