Tunable multistate field-free switching and ratchet effect by spin-orbit torque in canted ferrimagnetic alloy.

ABSTRACT: Spin-orbit torque is not only a useful probe to study manipulation of magnetic textures and magnetic states at the nanoscale but also it carries great potential for next-generation computing applications. Here we report the observation of rich spin-orbit torque switching phenomena such as field-free switching, multistate switching, memristor behavior and ratchet effect in a single shot, co-sputtered, rare earth-transition metal Gd_xCo_100-x. Notably such effects have only been observed in antiferromagnet/ferromagnet bi-layer systems previously. We show that these effects can be traced to a large anistropic canting, that can be engineered into the Gd_xCo_100-x system. Further, we show that the magnitude of these switching phenomena can be tuned by the

SUBMITTER: Hsu CH 

PROVIDER: S-EPMC11461957 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature