ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Symmetry Breaking in K2IrCL6 and related halides
Abstract: The present proposal seeks to establish the origin of the observed anomalies in the temperature dependence of the M-X bond distances in some cubic antifluorite-type A2MX6 (A = alkali metals; M = Metal; X = halides) hexahalides. We propose that this originates from disordered tilts of the MX6 octahedra that locally breaks the cubic symmetry that remains intact over larger length scales. The persistence of such disorder to very low temperatures is believed to be a consequence of very weak interactions between neighbouring MX6 octahedra. We will achieve this through variable temperature total scattering studies of three compounds: K2IrCl6, K2PtCl6, and K2SnCl6
Public release date: 30 November 2028
Principal Investigator: Professor Brendan Kennedy
Experimenter: Mr Caleb Bennett
Experimenter: Dr Frederick Marlton
Local Contact: Dr Gabriel Perez
DOI: 10.5286/ISIS.E.RB2410093-2
Parent DOI: 10.5286/ISIS.E.RB2410093
ISIS Experiment Number: RB2410093
Part Number: 2
This dataset is NOT yet publicly available.
The release date is: 30 November 2028
download
the dataset
Date of Experiment: 27 November 2025
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
Select the data format above to find
out more about it.
Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Professor Brendan Kennedy et al; (2025): Symmetry Breaking in K2IrCL6 and related halides, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410093-2
Data is released under the CC-BY-4.0 license.
