Co/Fe multilayers with constant Co layer thickness (tCo=5 nm) and Fe layer thickness (tFe) in the range 5–10 nm were electron beam evaporated in ultra-high vacuum. For tFe <10 nm the films showed an in-plane uniaxial magnetic anisotropy. For tFe=10 nm the uniaxial anisotropy lowered and stripe domains formed. The role of temperature and Fe layer thickness was investigated. The observed phenomena can be ascribed to surface anisotropy.
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