Surface magnetic anisotropy at a compensated interface of ferromagnetic   antiferromagnetic bilayer
  The periodic deviations of ferromagnetic and antiferromagnetic spins from corresponding uniform configurations are shown to be energetically favorable close to a compensated interface of ferromagnetic antiferromagnetic bilayer. The amplitude of the deviations decreases exponentially into the film volumes as a function of a coordinate perpendicular to the interface. The interaction energy is found to be proportional to a square of a scalar product of unit ferromagnetic and antiferromagnetic vectors. 
N.A. Usov, Ching-Ray Chang, Zung-Hang Wei