Fig. 6: Spin torques in AFMTJs.

a Schematics of the dynamics of collinear antiferromagnets induced by a spin current with uniform spin polarizations (left) and staggered spin polarizations (right) on two sublattices. b Atomic structure of a RuO₂/TiO₂/RuO₂ (001) AFMTJ (left) and calculated STT driven by Néel spin currents in this AFMTJ (right). Reprinted from ref. 11. with permission. c Schematic noncollinear AFMTJ (top) and calculated STT in this AFMTJ for different magnetic states of the electrodes (bottom). Reprinted from ref. 95. with permission. d SOT switching of an epitaxial Mn₃Sn film with assistance of a magnetic field. Reprinted from ref. 76. with permission. e Field-free spin-torque switching of a Mn₃Sn polycrystalline film. Reprinted from ref. 78. under permission of the Creative Commons CC BY license.