Publication details for Dr Aidan HindmarchRowan-Robinson, R. M., Hindmarch, A. T. & Atkinson, D. (2018). Efficient current-induced magnetization reversal by spin-orbit torque in Pt/Co/Pt. Journal of Applied Physics 124(18): 183901.
- Publication type: Journal Article
- ISSN/ISBN: 0021-8979 (print), 1089-7550 (electronic)
- DOI: 10.1063/1.5046503
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
Current-induced magnetization reversal due to spin-orbit torque is demonstrated in an anisotropy controlled Pt/Co/Pt trilayer. The samples were designed to have weak perpendicular magnetic anisotropy, with a measured anisotropy field of (1340±20) Oe. Reversal is shown to be dominated by a damping-like torque associated with the spin-Hall effect. A small in-plane magnetic field was required to break the symmetry and enable reversal. With a 273 Oe field, magnetization reversal occurred with a current density amplitude of only 5×1010 A m−2, which is shown to be consistent with a simple model. The field-like torque is negligible, so measurements indicate that the imaginary part of the spin-mixing conductance associated with Co/Pt interfaces must be negligible.