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Amorphous film magnetic bubble domain devices

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3 Author(s)
Kryder, M.H. ; IBM T. J. Watson Research Center, Yorktown Heights, N.Y., U.S.A. ; Ahn, K.Y. ; Powers, J.

Operation of all functions in an 8000 bit bubble domain device with 107bit/in2storage density on an amorphous film has been achieved. High frequency data clearly establishes 1 MHz operation in the amorphous films and large wall velocities indicate that frequencies in excess of 10 MHz may be possible. Replicate-transfer switches were made to operate with currents of 12 ma and chevron expander detectors produced 3 mv signals from the 2 μm domains. Relationships between materials characteristics and device performance are established and discussed.

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Magnetics, IEEE Transactions on  (Volume:11 ,  Issue: 5 )