ISIS Neutron and Muon Source Data Journal

Magnetic Excitations and Kitaev Interactions in the Newly Synthesized 2D Ru-based Quantum Spin Liquid Candidate

Abstract: Na2Co2RuO6 (NCRO) is a newly synthesized compound that crystallizes in the hexagonal P6322 structure and emerges as a promising candidate for Kitaev-type quantum spin liquid (QSL) behavior. Despite strong antiferromagnetic interactions, as evidenced by a large negative Curie-Weiss temperature ?p = -126 K, NCRO exhibits no signatures of long-range magnetic ordering down to 250 mK indicative of strong magnetic frustration and potential quantum spin liquid ground state. To probe this exotic magnetic state, we have performed detailed bulk magnetic susceptibility and heat capacity measurements at ultra-low temperatures. However, to unambiguously confirm the presence of fractionalized excitations and the role of bond directional Kitaev interactions inelastic neutron scattering (INS) investigations are essential. These studies will provide critical insights into the dynamic spin correlations and help establish NCRO as a bonafide Kitaev QSL system.

Principal Investigator: Dr Tathamay Basu
Experimenter: Mr Mohit Kumar Kumar
Experimenter: Dr Devashi Adroja
Local Contact: Dr Duc Le
Experimenter: Mr Sayan Ghosh
Experimenter: Mr Gourab Roy
Experimenter: Miss Ekta Kushwaha

DOI: 10.5286/ISIS.E.RB2520300

ISIS Experiment Number: RB2520300

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 Tathamay Basu et al; (2025): Magnetic Excitations and Kitaev Interactions in the Newly Synthesized 2D Ru-based Quantum Spin Liquid Candidate , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520300

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