ISIS Neutron and Muon Source Data Journal

Spin correlations of a triangular-lattice quantum-spin-liquid candidate

Abstract: A quantum spin liquid (QSL) shows no magnetic order down to zero temperature but the spins are highly entangled. More and more interests are attracted to 2D spin-1/2 triangular-lattice QSL systems with strong spin-orbital coupling including YbMgGaO4, in which our neutron scattering measurements have revealed dispersive spinon excitations with a clear upper excitation edge. Here, we propose to carry out µSR measurements on its isostructural compound TmMgGaO4 single crystals, which shows stronger exchange coupling and non-Kramer’s doublet ground state, resulting in a different magnetic picture. We will try to figure out its ground state at low temperature and try to evaluate the spin-spin correlation time from the field dependence of λ. Such measurement will help further understanding the QSL ground state, and the results will be compared with that of YbMgGaO4.

Principal Investigator: Mr Jun Zhao
Local Contact: Dr Pabitra Biswas
Experimenter: Dr Yao Shen
Experimenter: Dr Devashi Adroja
Experimenter: Dr Yu Feng

DOI: 10.5286/ISIS.E.RB1810045

ISIS Experiment Number: RB1810045

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:
Mr Jun Zhao et al; (2018): Spin correlations of a triangular-lattice quantum-spin-liquid candidate, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810045

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