Nedelkoski, Zlatko, Sanchez, Ana M., Ghasemi, Arsham et al. (5 more authors) (2016) The antiphase boundary in half-metallic Heusler alloy Co2Fe(Al,Si):atomic structure, spin polarization reversal, and domain wall effects. Applied Physics Letters. 222405. ISSN 0003-6951
Abstract
Atomic resolution scanning transmission electron microscopy reveals the presence of an antiphase boundary in the half-metallic Co2Fe(Al,Si) full Heusler alloy. By employing the density functional theory calculations, we show that this defect leads to reversal of the sign of the spin-polarization in the vicinity of the defect. In addition, we show that this defect reduces the strength of the exchange interactions, without changing the ferromagnetic ordering across the boundary. Atomistic spin calculations predict that this effect reduces the width of the magnetic domain wall compared to that in the bulk.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | 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) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 19 Dec 2016 15:01 |
Last Modified: | 05 Dec 2024 00:14 |
Published Version: | https://doi.org/10.1063/1.4971281 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1063/1.4971281 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109711 |