Quantum wells in trilayers: Dependence of the properties on the thickness of magnetic and nonmagnetic layers

Abstract Electronic systems of magnetic multilayers have been considered within the framework of the simplest quantum well models. The exchange coupling energy for trilayers has been calculated. It is shown that with varying magnetic layer thickness, the exchange coupling strength changes in a different way than in the case of nonmagnetic spacer thickness variation. This is explained in terms of the difference in the number of levels in quantum wells for ferromagnetic and antiferromagnetic structures.