Current-induced torques due to compensated antiferromagnets.
We analyze the influence of current-induced torques on the magnetization configuration of a ferromagnet in a circuit containing a compensated antiferromagnet. We argue that these torques are generically nonzero and determine their form by considering spin-dependent scattering at a compensated antiferromagnetic interface. Because of symmetry dictated differences in the form of the current-induced torque, the phase diagram which expresses the dependence of the ferromagnetic configuration on the current and external magnetic field differs qualitatively from its ferromagnet-only counterpart.
Department of Physics, The University of Texas at Austin, Austin, TX 78712-0264, USA.
Paul M
PM
Haney
A H
AH
MacDonald