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High density recording with perpendicular Co-Cr-Nb media and ring heads

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4 Author(s)
N. Watanabe ; Video R & D Laboratories, Yokohama, Japan ; Y. Ishizaka ; K. Kimura ; E. Imaoka

Effective double layer structure was investigated by adding Nb to the sputtering source of Co-Cr thin film perpendicular magnetic recording tapes. The output from the tapes was measured with a ring head through to the short wavelength, λ50=0.19 μm (D50=267KFRPI).

Published in:

IEEE Transactions on Magnetics  (Volume:21 ,  Issue: 5 )