Dynamic coercivity and thermal decay of magnetic media
K.A. Rubin, Jason Goldberg, et al.
MRS Spring Meeting 1998
High-resolution electron microscope observations confirm the presence of small crystallites in thin TbFeCo films protected by Si3N4 overcoats. Selected area electron diffraction patterns in top-view projection indicate that the crystals have a face-centered-cubic structure. Microscope analysis reveals grain growth following annealing of these protected thin films at 200°C in vacuum, and Kerr measurements yield large reductions in coercivity relative to the room-temperature value. The typical grain size visible in top-view observations increases from about 3 nm in the as-deposited samples to about 30 nm after annealing at 200°C for 36 h while the static coercivity, Hc, drops by about 40%. The fcc structure of the crystals is retained after annealing.
K.A. Rubin, Jason Goldberg, et al.
MRS Spring Meeting 1998
A.R. Modak, S.S.P. Parkin, et al.
Journal of Magnetism and Magnetic Materials
Kristy J. Kormondy, Agham B. Posadas, et al.
Journal of Applied Physics
P. Rice, R.E. Fontana, et al.
INTERMAG 2003