ISIS Neutron and Muon Source Data Journal

Search for spin liquid ground state in the disorder free triangular lattice KCeS2 and NaYbS2

Abstract: Rare-earth delafossites were recently proposed as promising candidates for the realization of an effective S = 1/2 quantum spin liquid on the triangular lattice [1, 2]. In contrast to the most actively studied triangular-lattice antiferromagnet YbMgGaO4, which is known for considerable structural disorder due to site intermixing, both NaYbS2 and KCeS2 delafossites realize structurally ideal triangular layers with no distortions. The absence of magnetic order down to 270mK temperatures strongly suggests that NaYbS2 compounds may realize the long-sought spin-liquid ground state. We propose to investigate these systems by means of zero field (ZF) and longitudinal field (LF) µSR experiments to test for the presence of static magnetism and to investigate the nature of the magnetism (static or dynamic) magnetic ground state.

Principal Investigator: Dr Rajib Sarkar
Experimenter: Professor Hans-Henning Klauss
Local Contact: Dr Peter Baker
Experimenter: Professor Vadim Grinenko
Experimenter: Dr Bernard Mostert
Experimenter: Dr Kostya Motovilov

DOI: 10.5286/ISIS.E.RB1910073

ISIS Experiment Number: RB1910073

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 Rajib Sarkar et al; (2019): Search for spin liquid ground state in the disorder free triangular lattice KCeS2 and NaYbS2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910073

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