ISIS Neutron and Muon Source Data Journal

Determining the magnetic structures of NaxCa1-xMn7O12 (x=0.25 and x=0.75): Candidate materials for novel orbital order and multiferroicity.

Abstract: Several members of the AA'3Mn4O12 quadruple perovskite family have now been realised, and are known to support intricate charge, orbital, and magnetic ordering phenomena. In particular NaMn7O12 develops commensurate magnetic and orbital order, as in the well-known compound La0.5Ca0.5MnO3, whereas CaMn7O12 exhibits a more exotic incommensurate magneto-orbital helix. We have grown for the first time NaxCa1-xMn7O12 compounds with x=0.25, 0.5, and 0.75. These compounds may realise magnetic structures that bridge the gap between exotic magneto-orbital helices and the well established collinear, commensurate order. Here we propose a continuation WISH experiment, based upon successful measurements recently made on the x=0.5 sample, to solve the magnetic structures of the x=0.25 and x=0.75 compounds with the primary aim of understanding the full NaxCa1-xMn7O12 phase diagram.

Principal Investigator: Dr Roger Johnson
Local Contact: Dr Pascal Manuel
Experimenter: Dr Francesco Mezzadri
Experimenter: Dr Edmondo Gilioli
Experimenter: Professor Paolo Radaelli

DOI: 10.5286/ISIS.E.RB1520201

ISIS Experiment Number: RB1520201

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; (2016): Determining the magnetic structures of NaxCa1-xMn7O12 (x=0.25 and x=0.75): Candidate materials for novel orbital order and multiferroicity., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520201

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