ISIS Neutron and Muon Source Data Journal

Magnetic ground state of Jeff = 0 Mott insulator Ag3LiRu2O6 under pressure

Abstract: Honeycomb ruthenates (Ru4+, 4d4) with strong spin-orbit coupling are expected to display unconventional magnetic ground state like spin-nematic or spin-liquid. The hitherto-known honeycomb ruthenate Li2RuO3 is, however, known to have a spin-singlet dimerized state where spin-orbit coupling is inactive. By using soft-chemical reaction, we obtained silver-intercalated Ag3LiRu2O6 which does not show dimerization in the Ru honeycomb lattice. Ag3LiRu2O6 shows a Van-Vleck-like paramagnetic susceptibility as expected for the d4 system with spin-orbit coupling. By applying pressure of ~0.5 GPa, Ag3LiRu2O6 shows a change of magnetic ground state and the magnetic susceptibility under pressure looks like a behavior of spin-liquid. To unveil the magnetic ground state under pressure, we propose to perform muon spin relaxation measurements under pressure.

Principal Investigator: Dr Tomohiro Takayama
Experimenter: Dr Dita Puspita Sari
Experimenter: Dr Isao Watanabe
Experimenter: Mr Marian Blankenhorn
Experimenter: Professor Hidenori Takagi
Experimenter: Dr Aleksandra Krajewska
Experimenter: Miss Harison Rozak

DOI: 10.5286/ISIS.E.RB1970001

ISIS Experiment Number: RB1970001

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 Tomohiro Takayama et al; (2019): Magnetic ground state of Jeff = 0 Mott insulator Ag3LiRu2O6 under pressure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1970001

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