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Possibility of 3 Gbits/in2 floppy disk

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4 Author(s)
Nagao, M. ; Recording Media Products Div., Fuji Photo Film Co. Ltd., Odawara, Japan ; Usuki, K. ; Nishikawa, M. ; Kashiwagi, A.

We tried to realize Gbits/in2 class Floppy Disk with a magnetic layer prepared by sputtering (SP-FD). The heat-durable undercoat and the underlayers made magnetic layer have Gbits/in2 properties, with higher S/N and narrower PW50 In comparison with those of 3.1 Gbits/in2 HD. Heat durable substrate, fine protrusions and aerodynamics consideration allowed to achieve stable and nonaggressive contacts and good durability after running for more than 250 hours at three different environment conditions. We can conclude that the SP-FD has the potential of 3 Gbits/in2 FD

Published in:

Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )