Ching Tsang, Hugo Santini, et al.
IEEE Transactions on Magnetics
Recording heads with four-layer laminated CoZr/Ta films as pole pieces have been fabricated using rf sputter deposition and ion milling techniques. Typical 4πMs of 14 000 G were obtained for CoZr amorphous films compared with 10 000 G for Permalloy films. Recording tests performed with this laminated CoZr/Ta film head indicate 8-12 dB better overwrite than with plated Permalloy film heads having an identical structure. However, the former exhibits a 10%-25% lower amplitude than the latter. This may be attributed to the thermal degradation of the initial permeability μi of the CoZr film during head-fabrication processes. This CoZr/Ta head also shows poorer amplitude stability than the plated Permalloy head.
Ching Tsang, Hugo Santini, et al.
IEEE Transactions on Magnetics
James L. Su, Kochan Ju
IEEE Transactions on Magnetics
Tai Min, Qiang Chen, et al.
IEEE Transactions on Magnetics
Jerry Lo, C. Hwang, et al.
IEEE Transactions on Magnetics