ISIS Neutron and Muon Source Data Journal

Correlating Structural and Magnetic Disorder in Sc-substituted SCGO (SrCr9Ga3O19)

Abstract: A prototypical frustrated magnet in which structural disorder plays a key role is SrCr9pGa12−9pO19 (SCGO). It is postulated that structurally ordered SCGO hosts a spin-liquid ground state, however it is not possible to prepare this composition with p<0.98 being the limiting composition. We have recently shown it is possible to change the nature of the structural disorder in SCGO by partially replacing Ga3+ with the larger non-magnetic ion Sc3+. Our preliminary results show that Sc-substitution has a dramatic effect on both the distribution of the Cr3+ and the magnetic susceptibility. We propose to study the diffuse scattering to investigate the role of structural disorder and magnetism in SCGO and Sc-substituted SCGO in order to to correlate the differences in magnetic diffuse scattering across the range of sample compositions with the differences in structural disorder.

Principal Investigator: Professor Sian Dutton
Experimenter: Miss Paromita Mukherjee
Local Contact: Professor David Keen
Experimenter: Dr Joe Paddison
Experimenter: Dr Nicola Kelly
Experimenter: Mr Richard Bowen

DOI: 10.5286/ISIS.E.RB1910490

ISIS Experiment Number: RB1910490

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 Sian Dutton et al; (2019): Correlating Structural and Magnetic Disorder in Sc-substituted SCGO (SrCr9Ga3O19), STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910490

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