Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet.

ABSTRACT: Current induced spin-orbit torques driven by the conventional spin Hall effect are widely used to manipulate the magnetization. This approach, however, is nondeterministic and inefficient for the switching of magnets with perpendicular magnetic anisotropy that are demanded by the high-density magnetic storage and memory devices. Here, we demonstrate that this limitation can be overcome by exploiting a magnetic spin Hall effect in noncollinear antiferromagnets, such as Mn₃Sn. The magnetic group symmetry of Mn₃Sn allows generation of the out-of-plane spin current carrying spin polarization collinear to its direction induced by an in-plane charge current. This spin current drives an out-of-plane anti-damping torque providing the deterministic switching of the perpendicul

SUBMITTER: Hu S 

PROVIDER: S-EPMC9343665 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature