Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers
Current-induced torques in ultrathin Co/Pt bilayers were investigated using an electrically driven ferromagnetic resonance technique. The angle dependence of the resonances, detected by a rectification effect as a voltage, was analysed to determine the symmetries and relative magnitudes of the spin-...
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| Format: | Article |
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American Institute of Physics
2014
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| Online Access: | https://eprints.nottingham.ac.uk/34353/ |
| _version_ | 1848794832244310016 |
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| author | Skinner, T.D. Wang, M. Hindmarch, A.T. Rushforth, A.W. Irvine, A.C. Heiss, D. Kurebayashi, H. Ferguson, A.J. |
| author_facet | Skinner, T.D. Wang, M. Hindmarch, A.T. Rushforth, A.W. Irvine, A.C. Heiss, D. Kurebayashi, H. Ferguson, A.J. |
| author_sort | Skinner, T.D. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Current-induced torques in ultrathin Co/Pt bilayers were investigated using an electrically driven ferromagnetic resonance technique. The angle dependence of the resonances, detected by a rectification effect as a voltage, was analysed to determine the symmetries and relative magnitudes of the spin-orbit torques. Both anti-damping (Slonczewski) and field-like torques were observed. As the ferromagnet thickness was reduced from 3 to 1nm, the sign of the sum of the field-like torque and Oersted torque reversed. This observation is consistent with the emergence of a Rashba spin orbit torque in ultra-thin bilayers. |
| first_indexed | 2025-11-14T19:22:27Z |
| format | Article |
| id | nottingham-34353 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:22:27Z |
| publishDate | 2014 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-343532020-05-04T16:43:16Z https://eprints.nottingham.ac.uk/34353/ Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers Skinner, T.D. Wang, M. Hindmarch, A.T. Rushforth, A.W. Irvine, A.C. Heiss, D. Kurebayashi, H. Ferguson, A.J. Current-induced torques in ultrathin Co/Pt bilayers were investigated using an electrically driven ferromagnetic resonance technique. The angle dependence of the resonances, detected by a rectification effect as a voltage, was analysed to determine the symmetries and relative magnitudes of the spin-orbit torques. Both anti-damping (Slonczewski) and field-like torques were observed. As the ferromagnet thickness was reduced from 3 to 1nm, the sign of the sum of the field-like torque and Oersted torque reversed. This observation is consistent with the emergence of a Rashba spin orbit torque in ultra-thin bilayers. American Institute of Physics 2014-02-10 Article PeerReviewed Skinner, T.D., Wang, M., Hindmarch, A.T., Rushforth, A.W., Irvine, A.C., Heiss, D., Kurebayashi, H. and Ferguson, A.J. (2014) Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers. Applied Physics Letters, 104 (6). 062401/1-062401/4. ISSN 1077-3118 http://scitation.aip.org/content/aip/journal/apl/104/6/10.1063/1.4864399 doi:10.1063/1.4864399 doi:10.1063/1.4864399 |
| spellingShingle | Skinner, T.D. Wang, M. Hindmarch, A.T. Rushforth, A.W. Irvine, A.C. Heiss, D. Kurebayashi, H. Ferguson, A.J. Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title | Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title_full | Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title_fullStr | Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title_full_unstemmed | Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title_short | Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers |
| title_sort | spin-orbit torque opposing the oersted torque in ultrathin co/pt bilayers |
| url | https://eprints.nottingham.ac.uk/34353/ https://eprints.nottingham.ac.uk/34353/ https://eprints.nottingham.ac.uk/34353/ |