ISIS Neutron and Muon Source Data Journal

Tuning B-B exchange in the R2MnMn(Mn4-xTix)O12 quadruple perovskite manganites

Abstract: For the RMn3O6 manganites, we have shown that tuning A-B exchange, by choice of A-site cation or by doping magnetic impurities, gives rise to dramatically different magnetic ground states. We propose an experiment to observe the effect of an alternative tuning mechanism, via B-B exchange. Four different RMn3O6 compounds were synthesised; SmMn3O6 with 25%, 50% and 75% Ti4+ on the B-sites, and a fourth NdMn3O6 sample with 50% Ti4+ on the B sites. All four samples magnetically order, where remarkably an increase in non-magnetic Ti ions increases the ordering temperature. The Ti-doped NdMn3O6 sample features a second phase transition at ~15K, which we hypothesise to be a spin-flop transition based on magnetometry data and point charge calculations. This experiment will form a crucial part of our study on the RMn3O6 compounds and will be paramount in determining their phase diagram.

Principal Investigator: Dr Roger Johnson
Experimenter: Dr Dmitry Khalyavin
Experimenter: Dr Pascal Manuel
Experimenter: Dr Anuradha Vibhakar

DOI: 10.5286/ISIS.E.RB1920116

ISIS Experiment Number: RB1920116

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; (2019): Tuning B-B exchange in the R2MnMn(Mn4-xTix)O12 quadruple perovskite manganites, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920116

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