Magnetic recording on patterned media
M. Albrecht, C.T. Rettner, et al.
NAPMRC 2003
An overview is given of a type of magnetic servo pattern made by locally altering the magnetic coercivity of a perpendicular anisotropy film where the FIB-irradiated areas are permanently defined and easily recovered in their exact positions by applying a uniform magnetic field. The generated magnetic pattern can be integrated as a servo pattern along with the data pattern, which allows single patterned media bits to be written with positioning accuracy of better than 10 nm, well below the lithographic resolution and sensor track width.
M. Albrecht, C.T. Rettner, et al.
NAPMRC 2003
C.T. Rettner, D.S. Bethune, et al.
The Journal of Chemical Physics
Q. Dai, G. Prada-Silva, et al.
INTERMAG 2005
G.M. Wallraff, D. Medeiros, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures