Yang, W-G., Morley, N.A., Sharp, J. et al. (1 more author) (2015) Giant electric field tunable magnetic properties in a Co50Fe50/lead magnesium niobate-lead titanate multiferroic heterostructure. Journal of Physics D: Applied Physics, 48 (30). ISSN 0022-3727
Abstract
Co50Fe50/(0 1 1)-oriented lead magnesium niobate–lead titanate (PMN–PT) multiferroic (MF) heterostructures were fabricated by RF sputtering magnetic films onto PMN–PT substrates. The effect of magnetic layer thickness (30 nm to 100 nm) on the magnetoelectric (ME) coupling in the heterostructures was studied independently, due to the almost constant magnetostriction constant (λ = 40 ± 5 ppm) and similar as-grown magnetic anisotropies for all studied magnetic layer thicknesses. A record high remanence ratio (M r/M s) tunability of 95% has been demonstrated in the 65 nm Co50Fe50/PMN–PT heterostructure, corresponding to a large ME constant (α) of 2.5 × 10−6 s m−1, when an external electric field (E-field) of 9 kV cm−1 was applied. Such an MF heterostructure provides considerable opportunities for E-field-controlled multifunctional devices.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 IOP Publishing. This is an author produced version of a paper subsequently published in Journal of Physics D: Applied Physics. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC BY licence 3.0 (https://creativecommons.org/licenses/by/3.0/) |
Keywords: | multiferroic heterostructure; magnetoelectric coupling; cobalt iron film (CoFe); microstructure |
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: | 25 Sep 2015 16:02 |
Last Modified: | 06 Jul 2016 00:07 |
Published Version: | http://iopscience.iop.org/0022-3727/48/30/305005 |
Status: | Published |
Publisher: | IOP Publishing |
Refereed: | Yes |
Identification Number: | 10.1088/0022-3727/48/30/305005 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89079 |