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Spin-reorientation processes in anisotropic magnetic superlattices (SLs) with antiferromagnetic interfacial coupling are theoretically analyzed. Results provide magnetic phase diagrams of the kind "external field-relative magnetic moment," as well as equations for the lines of the phase transitions. The influence of possible inhomogeneous magnetization in SLs is considered phenomenologically for the normal-incidence polar Kerr magneto-optical effect assuming the Q parameter to be a function of distance along the normal to the interface. A simple approach to the solution of this problem is outlined.

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