Perpendicular magnetic anisotropy properties of Co2FeSi/Pt multilayers deposited on amorphous dielectric Ta2O5

Magnetic anisotropy evolution with Fe content in electrodeposited Ni100−xFex thin films

“…Control of magnetic anisotropy is a key issue when dealing with magnetic materials, and in particular for thin films. While for some applications perpendicular magnetic anisotropy (PMA) is crucial to increase for example the magnetic storage capacity 1–5 or to create spin textures such as skyrmions or stripe domains, 6–9 it might be considered a disadvantage for other applications such as giant magnetoimpedance (GMI) sensors in which the need for soft magnetic properties is crucial. 10–12 Since optimum performance of GMI sensors is obtained for a thickness of around 1 μm, the insertion of layers is required to avoid the formation of stripes once the thickness exceeds the critical value for their formation, which is around 200 nm for sputtered Ni 80 Fe 20 layers 11 or even lower for materials with a higher PMA such as FePt.…”