ISIS Neutron and Muon Source Data Journal

Investigating the Low Temperature Magnetic Transition in the New Breathing Pyrochlore CuAlCr4S8

Abstract: Geometrically frustrated systems have been studied extensively over the last three decades. One archetype for geometrical frustration is magnetic ions decorating corner-sharing tetrahedra. The breathing pyrochlore structure has an alternating array of small and large tetrahedra and this unique combination of tetrahedral geometry and bond alternations allows for a wealth of exotic magnetic behavior. We are proposing to use WISH to investigate the magnetic transition at 20 K in our powder sample of the new breathing pyrochlore CuAlCr4S8. The magnetic susceptibility, heat capacity, and x-ray data show clear signs of a transition at 20 K with magnetic origin, but this transition is not well understood as of yet. The proposed experiment will allow us to search for magnetic Bragg peaks and diffuse scattering below 20 K and will provide much insight on the magnetic ground state in CuAlCr4S8.

Principal Investigator: Professor Graeme Luke
Local Contact: Dr Pascal Manuel
Experimenter: Professor Bruce Gaulin
Experimenter: Mr Sudarshan Sharma
Experimenter: Mr Evan Smith

DOI: 10.5286/ISIS.E.RB2210297

ISIS Experiment Number: RB2210297

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:
Professor Graeme Luke et al; (2022): Investigating the Low Temperature Magnetic Transition in the New Breathing Pyrochlore CuAlCr4S8, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2210297

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