ISIS Neutron and Muon Source Data Journal

The single ion crystal field ground state of Yb3+ in Yb2Ir2O7

Abstract: The rare earth iridates, R2Ir2O7 have been intensely studied in recent years due to the unique behaviour of the magnetism on the iridium sites; a consequence of competition between spin-orbit coupling and electronic interactions. Multiple exotic states of matter have been found in these materials. With this proposed we aim to complete our ongoing study of Yb2Ir2O7. Upon cooling to temperatures below 2 K we find the Yb sublattice to order, but with an ordered moment much smaller than the analogous Yb2Ti2O7. This indicates important differences between these similar materials. To fully understand the behaviour of Yb2Ir2O7 we require an accurate model of the single-ion crystal field ground state of the Yb3+. Neutron measurements of the crystal field spectrum are ideal for this. We propose to measure these excitations using MAPS so that an accurate model of the Yb3+ ions can be developed.

Principal Investigator: Dr Henrik Jacobsen
Local Contact: Dr Ross Stewart
Experimenter: Professor Andrew Boothroyd
Experimenter: Dr Dharmalingan Prabhakaran

DOI: 10.5286/ISIS.E.RB1900115

ISIS Experiment Number: RB1900115

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 Henrik Jacobsen et al; (2019): The single ion crystal field ground state of Yb3+ in Yb2Ir2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1900115

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