ISIS Neutron and Muon Source Data Journal

Structural analysis of honeycomb iridate alpha-Li2IrO3 under pressure

Abstract: We propose to perform neutron diffraction measurements on a honeycomb iridium oxide alpha-Li2IrO3 under pressure. Honeycomb iridates have been intensively studied as a possible materialisation of Kitaev spin liquid, but all of them show a magnetic ordering at low temperatures. We recently found a spin-liquid behaviour in 3D-honeycomb beta-Li2IrO3 under pressure. Moreover, by applying pressure, beta-Li2IrO3 undergoes a structural transition accompanying the Ir-Ir dimerisation. The Ir-Ir dimerisation may be a generic feature in honeycomb iridates under pressure. The 2D honeycomb iridate alpha-Li2IrO3 was also reported to display a structural transition at around 3 GPa. The crystal structure under pressure is, however, yet to be solved, and the possible presence of Ir dimers has not been clarified. We therefore analyse the crystal structure of alpha-Li2IrO3 under pressure at PEARL.

Principal Investigator: Dr Tomohiro Takayama
Experimenter: Professor Hidenori Takagi
Experimenter: Dr Aleksandra Krajewska
Experimenter: Dr Alexandra Gibbs
Local Contact: Dr Craig Bull

DOI: 10.5286/ISIS.E.RB1810455

ISIS Experiment Number: RB1810455

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; (2018): Structural analysis of honeycomb iridate alpha-Li2IrO3 under pressure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810455

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