ISIS Neutron and Muon Source Data Journal

Site Dilution and Orbital Effects in Magnetically Frustrated Perovskites Ba2Co1-xZnxMoO6

Abstract: Antiferromagnetic interactions on geometrically frustrated lattices such as the fcc lattice can result in novel magnetic states and structures. Ba2CoMoO6 is an fcc antiferromagnet ordering at 27 K with magnetic Co2+ ions displaying an unquenched orbital moment. These orbital effects are expected to play a significant role in the magnetic properties. We have produced the series Ba2Co1-xZnxMoO6 where the coupling between sites on the fcc lattice is randomly disrupted by diamagnetic Zn2+. Unexpectedly the net antiferromagnetic interactions become stronger upon dilution reaching a maximum at x = 0.25. We will use two days on GEM to examine the magnetic ordering, and any associated structural distortions and orbital ordering of compositions x = 0, 0.15, 0.25 and 0.5. This will unambiguously show the impact of any orbital-ordering on the bonding and resultant magnetic structure.

Principal Investigator: Professor Edmund Cussen
Local Contact: Dr Ivan da Silva Gonzalez
Experimenter: Ms Heather Mutch
Experimenter: Dr Otto Mustonen
Experimenter: Ms Charlotte Pughe

DOI: 10.5286/ISIS.E.RB1910339

ISIS Experiment Number: RB1910339

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 Edmund Cussen et al; (2019): Site Dilution and Orbital Effects in Magnetically Frustrated Perovskites Ba2Co1-xZnxMoO6 , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910339

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