Synthetic Antiferromagnet dynamics

Resonant Activation of a Synthetic Antiferromagnet.
S. S. Cherepov, B. C. Koop, Yu. I. Dzhezherya, D. C. Worledge, and V. Korenivski
Phys. Rev. Lett. 107, 077202 (2011)

(a) Schematic of the two AP states of a SAF particle (left and right panels) and the optical, out-of-phase
oscillation of the two moments under an off-axis microwave field (center panel). (b) Large-amplitude (dashed line) and small amplitude (solid line) optical-mode precession of the SAF antiferromagnetic vector.