Electrical mutual switching in a noncollinear-antiferromagnetic-ferromagnetic heterostructure.

ABSTRACT: Spin-orbit torque (SOT) provides a promising mechanism for electrically encoding information in magnetic states. Unlike existing schemes, where the SOT is passively determined by the material and device structures, an active manipulation of the intrinsic SOT polarity would allow for flexibly programmable SOT devices. Achieving this requires electrical control of the current-induced spin polarization of the spin source. Here we demonstrate a proof-of-concept current-programmed SOT device. Using a noncollinear-antiferromagnetic/nonmagnetic/ferromagnetic Mn₃Sn/Mo/CoFeB heterostructure at zero magnetic field, we show current-induced switching in the CoFeB layer due to the spin current polarized by the magnetic structure of the Mn₃Sn; by properly tuning the driving current

SUBMITTER: Yoon JY 

PROVIDER: S-EPMC11799527 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature