Abstract
We discuss the magnetic properties of trilayer A(n)/AcB1−c/B(p)/AcB1−c/A′(m)-structure with two mixed–spin interfaces AcB1−c(SA=1,SB=12) for arbitrary concentration c of A-spins and varied partial film thickness (n,p,m). The description is obtained by means of an effective-field approach which is superior to the standard molecular-field treatment. Temperature dependent magnetisation depth profiles of trilayer structure vs. concentration c of A-atoms are presented in the whole range of reduced temperature. The existence of enhanced interface magnetism is also discussed using the phase diagrams in JAB–c plane. Depth profiles are strongly inhomogeneous in the interface region and thus they lead to complex interface potentials contributing significantly to GMR-effect.
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