Publication details for Dr Aidan HindmarchSkinner, T.D. Wang, M., Hindmarch, A.T., Rushforth, A.W., Irvine, A.C., Heiss, D., Kurebayashi, H. & Ferguson, A.J. (2014). Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers. Applied Physics Letters 104(6): 062401.
- Publication type: Journal Article
- ISSN/ISBN: 0003-6951 (print), 1077-3118 (electronic)
- DOI: 10.1063/1.4864399
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
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 1 nm, 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.