Abstract
Out-of-plane magnetic anisotropy (OMA) of FeCoNbB amorphous films has been studied. The OMA is abnormally enhanced by elevating the substrate temperature from room-temperature to 500 °C, being much different from most soft-magnetic amorphous films. Furthermore, the films show a slightly decay in the OMA when annealed at a temperature lower than the respective deposition temperature. But when annealed at a temperature 50 °C higher than the respective deposition temperature, the OMA suddenly disappears. Such results indicate a distinguishing mechanism of non-magnetoelastic-anisotropy dominated OMA. A model of co-effects of magnetoelastic anisotropy and microshape anisotropy is proposed.
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