Theory of the magnetic proximity effect

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Abstract

A phenomenological theory of the magnetic proximity effect is developed in the context of a Ginzburg-Landau approach. The theory is applied to the case of compositionally modulated structures and to the phenomenon of “exchange anisotropy”. The results for the latter show that the observed linear temperature dependence of the unidirectional anisotropy is a measure of the temperature dependence of the interface order parameter.

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