ISIS Neutron and Muon Source Data Journal

Low energy magnetic excitations on a new triangular-lattice antiferromagnet

Abstract: Given the controversy about the magnetic ground state of the recently well studied triangular-lattice antiferromagnet (TLA) YbMgGaO4 due to Mg2+/Ga3+ disorder, we have synthesised a new TLA compound NdMgAl11O19 in which Nd3+ ions are arranged into perfect triangular lattice in the ab plane. Our previous polarised neutron diffraction and inelastic neutron scattering on powder samples have strongly indicated that this Ising-TLA material may be an ideal candidate to realise quantum spin liquid (QSL). We thus propose to carry out inelastic neutron scattering experiments on a co-aligned single-crystal sample (~2 g) at cold neutron chopper spectrometer LET, in order to study the low energy spin dynamic at the base temperature of a standard dilution refrigerator i.e. ~50 mK. We would request 7 days of beamtime at LET.

Principal Investigator: Dr Yixi Su
Experimenter: Dr Viviane Pecanha Antonio
Local Contact: Dr Rob Bewley
Experimenter: Dr Junda Song
Local Contact: Dr David Voneshen
Experimenter: Dr Fengfeng Zhu

DOI: 10.5286/ISIS.E.RB1910521

ISIS Experiment Number: RB1910521

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 Yixi Su et al; (2019): Low energy magnetic excitations on a new triangular-lattice antiferromagnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910521

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