Imaging current-induced switching of antiferromagnetic domains in CuMnAs
The magnetic order in antiferromagnetic materials is hard to control with external magnetic fields. Using X-ray Magnetic Linear Dichroism microscopy, we show that staggered effective fields generated by electrical current can induce modification of the antiferromagnetic domain structure in microdevi...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/41041/ |
| _version_ | 1848796183236968448 |
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| author | Grzybowski, M.J. Wadley, P. Edmonds, K.W. Beardsley, R. Hills, Victoria Anne Campion, R.P. Gallagher, B.L. Chauhan, Jasbinder S. Novák, V. Jungwirth, T. Maccherozzi, F. Dhesi, S.S. |
| author_facet | Grzybowski, M.J. Wadley, P. Edmonds, K.W. Beardsley, R. Hills, Victoria Anne Campion, R.P. Gallagher, B.L. Chauhan, Jasbinder S. Novák, V. Jungwirth, T. Maccherozzi, F. Dhesi, S.S. |
| author_sort | Grzybowski, M.J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The magnetic order in antiferromagnetic materials is hard to control with external magnetic fields. Using X-ray Magnetic Linear Dichroism microscopy, we show that staggered effective fields generated by electrical current can induce modification of the antiferromagnetic domain structure in microdevices fabricated from a tetragonal CuMnAs thin film. A clear correlation between the average domain orientation and the anisotropy of the electrical resistance is demonstrated, with both showing reproducible switching in response to orthogonally applied current pulses. However, the behavior is inhomogeneous at the submicron level, highlighting the complex nature of the switching process in multi-domain antiferromagnetic films. |
| first_indexed | 2025-11-14T19:43:56Z |
| format | Article |
| id | nottingham-41041 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:43:56Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-410412020-05-04T18:28:56Z https://eprints.nottingham.ac.uk/41041/ Imaging current-induced switching of antiferromagnetic domains in CuMnAs Grzybowski, M.J. Wadley, P. Edmonds, K.W. Beardsley, R. Hills, Victoria Anne Campion, R.P. Gallagher, B.L. Chauhan, Jasbinder S. Novák, V. Jungwirth, T. Maccherozzi, F. Dhesi, S.S. The magnetic order in antiferromagnetic materials is hard to control with external magnetic fields. Using X-ray Magnetic Linear Dichroism microscopy, we show that staggered effective fields generated by electrical current can induce modification of the antiferromagnetic domain structure in microdevices fabricated from a tetragonal CuMnAs thin film. A clear correlation between the average domain orientation and the anisotropy of the electrical resistance is demonstrated, with both showing reproducible switching in response to orthogonally applied current pulses. However, the behavior is inhomogeneous at the submicron level, highlighting the complex nature of the switching process in multi-domain antiferromagnetic films. American Physical Society 2017-01-31 Article PeerReviewed Grzybowski, M.J., Wadley, P., Edmonds, K.W., Beardsley, R., Hills, Victoria Anne, Campion, R.P., Gallagher, B.L., Chauhan, Jasbinder S., Novák, V., Jungwirth, T., Maccherozzi, F. and Dhesi, S.S. (2017) Imaging current-induced switching of antiferromagnetic domains in CuMnAs. Physical Review Letters, 118 (5). 057701/1-057701/5. ISSN 1079-7114 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.057701 doi:10.1103/PhysRevLett.118.057701 doi:10.1103/PhysRevLett.118.057701 |
| spellingShingle | Grzybowski, M.J. Wadley, P. Edmonds, K.W. Beardsley, R. Hills, Victoria Anne Campion, R.P. Gallagher, B.L. Chauhan, Jasbinder S. Novák, V. Jungwirth, T. Maccherozzi, F. Dhesi, S.S. Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title | Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title_full | Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title_fullStr | Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title_full_unstemmed | Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title_short | Imaging current-induced switching of antiferromagnetic domains in CuMnAs |
| title_sort | imaging current-induced switching of antiferromagnetic domains in cumnas |
| url | https://eprints.nottingham.ac.uk/41041/ https://eprints.nottingham.ac.uk/41041/ https://eprints.nottingham.ac.uk/41041/ |