ISIS Neutron and Muon Source Data Journal

Investigation of the effect on the atomic spin in a spring-exchange coupled magnet

Abstract: Strong magnets with a high energy product are vital when optimizing the efficiency in the electric industry. This can be achieved by making spring-exchange coupled magnets. Samples have been made by partly reducing CoFe2O4 to CoFe2 creating easily a spring-exchange coupled magnets with 10 times increase in energy product compared to pure CoFe2O4. The spring-exchange is a microscopic short ranged effect in which the spins in the soft phase gets aligned by the field from the hard phase. The coupling changes the normal critical behaviour of the soft phase of the magnet and enhances the energy product. In order to investigate the effect of the sample composition and the size of the particle upon the coupling effect, we propose to do temperature scans while collecting powder diffraction data in order to investigate the spring-exchange couple mechanism on an atomic level.

Principal Investigator: Dr Mogens Christensen
Experimenter: Mr Frederik Gjørup
Experimenter: Mr Mathias Mørch
Local Contact: Professor Paul Henry
Experimenter: Mr Jakob Voldum Ahlburg

DOI: 10.5286/ISIS.E.RB1810501

ISIS Experiment Number: RB1810501

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 Mogens Christensen et al; (2018): Investigation of the effect on the atomic spin in a spring-exchange coupled magnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810501

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