Kelley, Christopher Stephen, Thompson, Sarah Madeleine orcid.org/0000-0002-3996-8081, Gilks, Daniel et al. (7 more authors) (2017) Spatially resolved variations in reflectivity across iron oxide thin films. Journal of Magnetism and Magnetic Materials. pp. 743-749. ISSN 0304-8853
Abstract
The spin polarising properties of the iron oxide magnetite (Fe3O4) make it attractive for use in spintronic devices, but its sensitivity to compositional and structural variations make it challenging to prepare reli- ably. Infrared microspectroscopy and modelling are used to determine the spatial variation in the chem- ical composition of three thin films of iron oxide; one prepared by pulsed laser deposition (PLD), one by molecular beam epitaxy (MBE) deposition of iron whilst simultaneously flowing oxygen into the chamber and one by flowing oxygen only once deposition is complete. The technique is easily able to distinguish between films which contain metallic iron and different iron oxide phases as well as spatial variations in composition across the films. The film grown by post-oxidising iron is spatially uniform but not fully oxi- dised, the film grown by simultaneously oxidising iron showed spatial variation in oxide composition while the film grown by PLD was spatially uniform magnetite.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Publisher Copyright: © 2017 The Authors Copyright: Copyright 2017 Elsevier B.V., All rights reserved. |
Keywords: | Infrared,Magnetoresistance,Oxides,Spintronics |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Jun 2017 08:45 |
Last Modified: | 08 Feb 2025 00:23 |
Published Version: | https://doi.org/10.1016/j.jmmm.2017.04.004 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.jmmm.2017.04.004 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:118248 |
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