ISIS Neutron and Muon Source Data Journal

Investigation of spin excitations in a spin-1 Kitaev candidate material

Abstract: The Kitaev model is an exactly solvable quantum-spin-liquid model defined on a honeycomb lattice with S = 1/2. The key element underlying this model is the bond-anisotropic Kitaev interaction. More recently, we extend the Kitaev physics to a higher-spin system, where we find in a honeycomb-lattice antiferromagnet Na3Ni2BiO6 that there is a profound 1/3 magnetization plateau, which is stabilized by the Kitaev interaction. However, its sister compound Na3Ni2SbO6 (NNSO) exhibits a different behavior. Our theoretical calculations suggest a potential weakening of the Kitaev interaction in NNSO, possibly leading to the prominence of biquadratic exchange. Hence, NNSO not only serves as an ideal platform for studying the impact of SOC on Kitaev interactions but also presents a unique opportunity to explore the uncommon biquadratic exchange interaction.

Principal Investigator: Dr Yanyan Shangguan
Experimenter: Dr Song Bao
Experimenter: Professor Jinsheng Wen
Local Contact: Dr George Wood
Experimenter: Mr Hao Xu
Experimenter: Mr Maofeng Wu
Experimenter: Mr Zihang Song

DOI: 10.5286/ISIS.E.RB2420088

ISIS Experiment Number: RB2420088

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 Yanyan Shangguan et al; (2026): Investigation of spin excitations in a spin-1 Kitaev candidate material, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2420088

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