An amorphous layer of a cobalt iron-based (CoFe-based) magnetic alloy
suitable for use in magnetoelectronic devices is disclosed. In the most
preferred embodiments of the present invention, at least one amorphous
layer is provided in an MTJ stack to increase the smoothness of the
various layers in the MTJ stack while also enhancing the magnetic
performance of the resulting device. Additionally, the alloys of the
present invention are also useful in cladding applications to provide
electrical flux containment for signal lines in magnetoelectronic devices
and as a material for fabricating write heads.
