ISIS Neutron and Muon Source Data Journal

Magneto-elastic enhancement of sublattice interactions in RMn7O12

Abstract: The quadruple perovskite manganites provide a fruitful playground to explore the interplay between charge, orbital and spin degrees of freedom on multiple sublattices, producing exotic phases of fundamental scientific and technological interest. Across the monoclinic A3+Mn7O12 family, competing descriptions of magnetic order have been put forward and ascribed to the same characteristic magnetic intensities. Such discrepancies have emerged due to an inherent difficulty in differentiating competing models against magnetic diffraction alone. Using symmetry arguments we have established that a strong magneto-elastic coupling scheme, as evidenced in the lattice parameters, can support only one of the proposed magnetic models.We propose a neutron powder diffraction experiment on PrMn7O12 to confirm our hypothesis. Secondly, we aim to solve the ground state magnetic structure, likely elucidating the role of orbital instabilities in mediating magnetism across the wider family.

Public release date: 16 February 2027

Principal Investigator: Dr Roger Johnson
Experimenter: Mr Dylan Behr
Local Contact: Dr Pascal Manuel
Experimenter: Mr John Matthias Attah-Baah

DOI: 10.5286/ISIS.E.RB2310189-2

Parent DOI: 10.5286/ISIS.E.RB2310189

ISIS Experiment Number: RB2310189

Part Number: 2

Date of Experiment: 15 February 2024

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 Roger Johnson et al; (2024): Magneto-elastic enhancement of sublattice interactions in RMn7O12, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310189-2

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