Visualisation of high temperature magnetisation states in magnetite grains using off-axis electron holography

Almeida, T. P. , Muxworthy, A. R., Kovács, A., Williams, W. and Dunin-Borkowski, R. E. (2015) Visualisation of high temperature magnetisation states in magnetite grains using off-axis electron holography. Journal of Physics: Conference Series, 644, 012027. (doi:10.1088/1742-6596/644/1/012027)

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Abstract

The production of a synthetic basalt comprising Fe3O4 grains (~ 50 nm to ~ 500 nm), via a glass ceramic method, has been confirmed using transmission electron microscopy and X-ray diffractometry. Off-axis electron holography combined with in situ heating allowed for the visualisation of non-uniform vortex states present in saturation remanent structures, and their variation approaching the Curie temperature; determined separately by bulk thermomagnetic measurements.

Item Type:Articles
Additional Information:The authors would like to thank the Natural Environment Research Council for funding NERC grant NE/J020966/1.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Almeida, Dr Trevor
Authors: Almeida, T. P., Muxworthy, A. R., Kovács, A., Williams, W., and Dunin-Borkowski, R. E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics: Conference Series
Publisher:IOP Science
ISSN:1742-6588
Copyright Holders:Copyright © 2015 The Authors
First Published:First published in Journal of Physics: Conference Series 644:012027
Publisher Policy:Reproduced under a Creative Commons licence

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