ISIS Neutron and Muon Source Data Journal

Quantum Spin Liquid in triangular Seff=1/2 rare-earth based antiferromagnets

Abstract: The rise of quantum materials observed in the past decades has been a source of great excitement for condensed matter scientists, with the flourishing of new concepts and electronic phases of matter. In particular the Quantum Spin Liquid (QSL) state has attracted a lot of attention as it shows intriguing collective phenomena such as fractionalized excitations or emergent gauge fields. A new Seff=1/2 rare-earth based material, YbMgGaO4, was recently shown to avoid any spin freezing down to T = 50mK and to display a continuum of excitations. However, the presence of intersite mixing between Mg2+ and Ga3+ has dramatic effects on these low energy excitations. Here, we propose to use µSR spectroscopy to confirm two new Seff=1/2 triangular compounds (KYbVO and KCsYbPO) that are free of such defects as quantum spin liquid candidates and further probe their spin dynamics at low temperatures.

Principal Investigator: Dr Edwin Kermarrec
Experimenter: Professor Fabrice Bert
Experimenter: Mr Suvam Bhattacharya
Experimenter: Dr Ramender Kumar Sharma
Experimenter: Professor Philippe Mendels
Local Contact: Dr Peter Baker

DOI: 10.5286/ISIS.E.RB1910447

ISIS Experiment Number: RB1910447

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 Edwin Kermarrec et al; (2019): Quantum Spin Liquid in triangular Seff=1/2 rare-earth based antiferromagnets, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910447

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