Morley, N.A., Finkel, A.C., Yang, W. et al. (1 more author) (2014) Magnetic and structural characterization of NiFe/Fe30Co70 Bilayers. IEEE Transactions on Magnetics, 50 (11). 2503704. ISSN 0018-9464
Abstract
Magnetostrictive films are required for a wide range of device applications; by increasing the magnetostriction constant and decreasing the anisotropy field, the devices will become more efficient. This paper has studied Fe30Co70 films on different thicknesses of the soft magnetic underlayer Ni81Fe19, to determine how the structural and magnetic properties change. It was found that the anisotropy field of the Fe30Co70 film could be reduced by 50% to 10 kA/m and the magnetostriction constant increased by a factor 4 to 65 ppm when grown on 30 nm Ni81Fe19. This was due to the NiFe underlayer inducing a BCC(110) texture within the Fe30Co70 film and reducing the in-plane stress.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 IEEE. This is an author produced version of a paper subsequently published in IEEE Transactions on Magnetics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Magnetostrictive films; microelectromechanical systems (MEMSs); soft magnetic underlayers |
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: | 12 Feb 2015 10:47 |
Last Modified: | 21 Mar 2018 20:56 |
Published Version: | http://dx.doi.org/10.1109/TMAG.2014.2330001 |
Status: | Published |
Publisher: | IEEE |
Refereed: | Yes |
Identification Number: | 10.1109/TMAG.2014.2330001 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83443 |