Szumiata, T., Gzik-Szumiata, M., Brzózka, K. et al. (5 more authors) (2015) Interface influence on the properties of Co90Fe10 films on soft magnetic underlayers - Magnetostrictive and Mössbauer spectrometry studies. Journal of Magnetism and Magnetic Materials, 401. 943 - 948. ISSN 0304-8853
Abstract
The main aim of the work was to show the correlation between magnetostrictive properties and microstructure of 25 nm thick Co90Fe10 films deposited on soft magnetic underlayers. A special attention was paid to the role of the interface region. In the case of Co90Fe10 on 25 nm and 35 nm thick METGLAS underlayers one can resolve in conversion electron Mössbauer spectra two hyperfine field distributions (high-field and medium-field ones) corresponding to both constituents of bilayers. Analogical distributions describe the spectra of Co90Fe10 on 25 nm and 35 nm thick Ni81Fe19 underlayers, however an additional low-field, smeared component has been observed. It has been attributed to the interface layer (of partially disordered structure) between magnetostrictive layer and soft magnetic layer. Such interpretation is backed up by the obtained strong correlation between mean hyperfine field value and magnetostriction constant of the films. The investigated bilayers are good candidates for MRAM devices.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Copyright © 2015 Elsevier. This is an author produced version of a paper subsequently published in Journal of Magnetism and Magnetic Materials. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | Low-magnetostrictive thin films; Interface effects; Mössbauer spectrometry |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Dec 2015 15:37 |
Last Modified: | 09 Nov 2017 01:38 |
Published Version: | http://dx.doi.org/10.1016/j.jmmm.2015.11.010 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.jmmm.2015.11.010 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:92527 |