Magnetic properties of bilayers with a mixed-spin interface

A thin ferromagnetic bilayer structure with interface magnetic moment and different exchange interactions is studied in terms of a mixed Ising model. The phase diagrams of critical temperature TC vs. interface parameters and the temperature dependence of layered magnetizations are presented. In particular, the magnetization profiles across bilayer show us the existence of the interface magnetism phase and temperature reversal of magnetization profiles assigned to special domains of phase diagrams provided the interface perpendicular anisotropy is large enough. The results form the basis to extend our recent studies on the Hood–Falicov approach to the giant magneto-resistance description.