'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
We present a study of the effect of
annealing amorphous ferromagnetic thin films of
Co0.85(Al0.7Zr0.3)0.15, post deposition. The annealing was
done in vacuum with no applied magnetic field. We find
that already at a relatively low annealing temperature
of 130 ◦C there is crystallite formation that introduces
both structural and magnetic inhomogeneity. This does not
affect the saturation magnetization strongly, but strongly
affects the switching behavior and the overall effective
anisotropy of the films. Further, there is a dramatic
increase in magnetization damping. Thus, the annealing
has a profound effect on both static and dynamic magnetic
properties of the material. This is important to keep in
mind for potential applications using these materials.Icelandic Research Fund Grants No. 228951, 218029 and 217843.Peer Reviewe
