Spin transfer torques generated by the anomalous Hall effect and anisotropic magnetoresistance
Tomohiro Taniguchi, Julie Grollier, Mark D. Stiles
Spin-orbit effects in ferromagnets, the anomalous Hall effect and the anisotropic magnetoresistance, generate spin currents in addition to the charge currents with which they are traditionally associated. These effects allow for the injection of a spin current into layers perpendicular to the electrical current flow. Unlike the related spin Hall effect in non-magnetic materials, they allow some control of the orientation of the injected spins. This control makes it possible to switch perpendicularly magnetized layers more easily because of the possibility of an out-of-plane component of the torque. It also makes it possible to switch in-plane magnetized layers via propagation of transverse/vortex walls and can efficiently induce dynamics in coupled magnetic systems, e.g. coupled transverse domain walls.
, Grollier, J.
and Stiles, M.
Spin transfer torques generated by the anomalous Hall effect and anisotropic magnetoresistance, Physical Review Applied, [online], https://doi.org/10.1103/PhysRevApplied.3.0, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917545
(Accessed February 25, 2024)