Abstract
We study the effects of uniaxial spin-transfer torque (USTT) on the ferromagnetic (F) aswell as antiferromagnetic (AF) layers in an exchange-biased (EB) spin valve. Byanalytically treating the free-energy functional of the F/AF bilayer and numerically solvingthe Landau–Lifshitz–Gilbert equation for magnetic moments, we can reproduceand explain two existing experimental facts relevant to USTT: one is that theEB field can be reversed by both positive and negative pulsed currents, and theother is that the critical current to excite the F moments is greatly increased inthe presence of an AF layer and independent of external fields. We also derivethe angular dependence of the critical currents to excite AF and F moments,which suggests a possible way to quantitatively determine USTT in experiments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
