ISIS Neutron and Muon Source Data Journal

Crystal structure analysis of new hyperhoneycomb iridate beta-H2IrO3

Abstract: The realization of a spin liquid is a long-sought dream in condensed matter physics. The theoretical predication for Kitaev spin liquid in honeycomb iridates triggered tremendous interests. We discovered a new platform for Kitaev physics, beta-Li2IrO3 with a 3D analogue of honeycomb lattice dubbed hyperhoneycomb lattice. beta-Li2IrO3 in fact undergoes a magnetic ordering. Interestingly, an application of pressure drastically changes the magnetic properties of beta-Li2IrO3, indicating that its magnetic ground state is sensitive to lattice distortion. We therefore synthesized a new hyperhoneycomb iridate beta-H2IrO3 by an ion-exchange reaction to tune the lattice distortion. The magnetism of beta-H2IrO3 looks quite different from beta-Li2IrO3, but the details of structure are unknown. We plan to analyse such details with high resolution powder neutron diffraction measurements at HRPD.

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

DOI: 10.5286/ISIS.E.RB1620391

ISIS Experiment Number: RB1620391

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; (2017): Crystal structure analysis of new hyperhoneycomb iridate beta-H2IrO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620391

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