ISIS Neutron and Muon Source Data Journal

Understanding the interplay between structural and electronic t2g degrees of freedom in perovskites with orbital order-disorder phenomena

Abstract: While orbital ordering and disordering phenomena have been much studied in oxide perovskites (e.g. colossal magnetoresistance manganites), where the electronic instability is associated with the eg manifold of the TMs, relatively little is known about the phenomena in the fluorides where electronic degrees of freedom associated with t2g electrons are at play. Here we propose a 2-day local structure total scattering study on POLARIS to investigate the orbital disordered ground state in two fluoride transition metal (TM) perovskites NaCoF3 and KFeF3 that are expected to have contrasting Jahn-Teller distortions. Our work will give a broader insight into how orbital ordering phenomena can be systematically tuned, with view to harnessing associated functional properties.

Principal Investigator: Dr Mark Senn
Experimenter: Miss Elizabeth Arnold
Local Contact: Professor Paul Henry
Experimenter: Dr Catriona Crawford
Experimenter: Mr Matthew Edwards

DOI: 10.5286/ISIS.E.RB2520097

ISIS Experiment Number: RB2520097

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 Mark Senn et al; (2025): Understanding the interplay between structural and electronic t2g degrees of freedom in perovskites with orbital order-disorder phenomena, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520097

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