Characteristic Features of Reverse Magnetization inside a Pinned Bistructured Layer in FeMn/FeNi Films

The exchange bias effect is investigated in permalloy layers split by a Co–Al2O3 spacer. Dependences of the exchange anisotropy constant on the composition and thickness of the spacer are established. The structuring of the pinned layer is shown to be effective for tailoring the functional properties of exchange bias systems.