ISIS Neutron and Muon Source Data Journal

muSR of a Quantum Spin Liquid based on the Hyperhoneycomb Lattice

Abstract: The hyperhoneycomb lattice can be viewed as a 3D version of the 2D honeycomb and the new magnetic compound [(C2H5)3NH]2Cu2(C2O4)3 provides a rare example. Honeycomb type lattices are expected to support spin liquid ground states when favourable patterns of spin interactions are present. This can happen when spin orbit coupling is strong (as in the Kitaev model) or when next-nearest-neighbour interactions are a significant fraction of the nearest neighbour interactions (J2/J1~0.2-0.4), as appears to be the case here. Following Jahn-Teller distortion around the Cu sites, a 2D magnetic lattice emerges that is honeycomb-like. Various measurements show gapless 2D spin liquid character, including muon data down to 60 mK. Distinct sub-phases found within the spin liquid require taking further muon data in a set of LF scans between 50 mK and 15 K. This will allow a thorough test against theory.

Principal Investigator: Dr Francis Pratt
Experimenter: Mr Yan Zhang
Experimenter: Dr Peter Baker
Experimenter: Professor Bin Zhang

DOI: 10.5286/ISIS.E.RB1720478

ISIS Experiment Number: RB1720478

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 Francis Pratt et al; (2018): muSR of a Quantum Spin Liquid based on the Hyperhoneycomb Lattice, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720478

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