Kunimatsu, Kazuma, Tsuchiya, Tomoki, Roy, Tufan et al. (5 more authors) (2020) Magnetic tunnel junctions with metastable bcc Co3Mn electrodes. Applied Physics Express. 083007. ISSN 1882-0786
Abstract
We studied magnetic tunnel junctions (MTJs) with a MgO(001) barrier and metastable bcc Co3Mn(001) disordered alloy electrodes. A tunnel magnetoresistance (TMR) ratio was approximately 200{250% observed at room temperature.We successfully observed the TMR ratio greater than 600% at 10 K which was higher than the past reported value of MgO-based MTJs with ultrathin bcc Co(001) electrodes. However our experimental value was still much lower than the past theoretical prediction in bcc Co/MgO/Co(001) MTJs. We discuss some differences in the bulk band structure affecting the TMR effect for bcc Co and bcc Co3Mn.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 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: | 29 Jul 2020 13:10 |
Last Modified: | 31 Dec 2024 00:11 |
Published Version: | https://doi.org/10.35848/1882-0786/aba883 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.35848/1882-0786/aba883 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:163875 |
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