The ferromagnetic/antiferromagnetic interfacial interaction was investigated in thin Fe films grown on stepped Cr(001) with the steps parallel to the [100] direction. Above the N\'eel temperature of the Cr, the atomic steps induce a uniaxial magnetic anisotropy with the easy axis parallel to the step edges. Below the N\'eel temperature, the Fe-Cr interfacial interaction favors the Fe magnetization perpendicular to the step edges. The competition between the Fe-Cr interaction and the step-induced magnetic anisotropy results in an in-plane 90^∘{} magnetization switching from perpendicular to the step edges at low step-density to parallel to the step edges at high step density.
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Escorcia-Aparicio et al. (1998) studied this question.
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