ISIS Neutron and Muon Source Data Journal

Pressure-induced structural and magnetic transitions in honeycomb ruthenate Ag3LiRu2O6

Abstract: Honeycomb ruthenates (Ru4+, 4d4) with strong spin-orbit coupling are expected to host unconventional magnetic ground state owing to a spin-orbital-entangled Jeff = 0 state. The hitherto-known honeycomb ruthenate Li2RuO3 is, however, known to display a spin-singlet dimerization where spin-orbit coupling is inactive. By using soft-chemical reaction, we obtained an Ag-intercalated Ag3LiRu2O6 which does not show dimerization of Ru atoms. Ag3LiRu2O6 shows a Van-Vleck-like paramagnetic susceptibility as expected for Jeff = 0 states. By applying pressure of ~0.5 GPa, Ag3LiRu2O6 shows a change of magnetic ground state likely associated with modified RuO6 distortion. Furthermore, signatures of pressure-induced dimerization have been seen at a higher pressure in NMR and XRD. To reveal the pressure-induced phase transitions, we propose high-pressure neutron diffraction on Ag3LiRu2O6 on PEARL.

Principal Investigator: Dr Tomohiro Takayama
Experimenter: Dr Aleksandra Krajewska
Experimenter: Dr Alexandra Gibbs
Local Contact: Dr Craig Bull
Experimenter: Professor Hidenori Takagi
Experimenter: Mr Marian Blankenhorn
Experimenter: Dr Graham McNally

DOI: 10.5286/ISIS.E.RB1920241

ISIS Experiment Number: RB1920241

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): Pressure-induced structural and magnetic transitions in honeycomb ruthenate Ag3LiRu2O6, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920241

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