ISIS Neutron and Muon Source Data Journal

Spin correlations and order in titanates exhibiting spin Jahn-Teller antiferromagnetism

Abstract: The spin Jahn-Teller effect stabilises 3D magnetic order in an otherwise frustrated system via magnetoelastic coupling, spontaneously at the magnetic phase transition. Examples are rare, and limited to crystals of high symmetry (e.g. spinel). We have shown that CoTi2O5, a low symmetry crystal, also exhibits spin Jahn-Teller antiferromagnetism. Here, low dimensional magnetism persists above the Neel temperature, allowing, in principle, for the 3D antiferromagnetic order to be switched on and off by applied strain – a novel material functionality of interest in the field of spintronics and oxide electronics. We propose a neutron scattering experiment to characterise the key low dimensional order, as well as determine the magnetic character of an isostructural material, FeTi2O5, which may prove to be a more promising candidate for inclusion in a spin Jahn-Teller device.

Principal Investigator: Dr Roger Johnson
Experimenter: Mr William Steinhardt
Experimenter: Dr Franz Lang
Experimenter: Professor Stephen Blundell
Local Contact: Dr Pascal Manuel
Experimenter: Dr John Wilkinson

DOI: 10.5286/ISIS.E.RB1910211

ISIS Experiment Number: RB1910211

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): Spin correlations and order in titanates exhibiting spin Jahn-Teller antiferromagnetism, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910211

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