Kunimatsu, Kazuma, Tsuchiya, Tomoki, Elphick, Kelvin et al. (4 more authors) (2019) Fabrication of magnetic tunnel junctions with a metastable bcc Co3Mn disordered alloy as a bottom electrode. Japanese Journal of Applied Physics. 080908. ISSN 1347-4065
Abstract
We fabricated MgO barrier magnetic tunnel junctions (MTJs) with a Co3Mn alloy bottom and FeCoB top electrodes. The (001)-oriented epitaxial films of the metastable bcc Co3Mn disordered alloys obtained showed saturation magnetization of approximately 1640 emu/cm3. The transmission electron microscopy showed that the MgO barrier was epitaxially grown on the Co3Mn electrode. Tunnel magnetoresistance of approximately 150% was observed at room temperature after the annealing of MTJs at 350◦C, indicating that bcc Co3Mn alloys have relatively high spin polarization.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2019 The Japan Society of Applied Physics. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 11 Jul 2019 13:20 |
Last Modified: | 26 Jan 2025 00:14 |
Published Version: | https://doi.org/10.7567/1347-4065/ab2f96 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.7567/1347-4065/ab2f96 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:148451 |
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