NDLI: Magnetic recording at a data rate of one gigabit per second

Content Provider	IEEE Xplore Digital Library
Author	Liu, F.H. Shi, S. Wang, J. Chen, Y. Stoev, K. Leal, L. Saha, R. Tong, H.C. Dey, S. Nojaba, M.
Copyright Year	1965
Description	Magnetic recording at a data rate of 1 Gb/s was studied in detail. Dynamic flux response of the inductive write head under the write current excitation of 40 mA/sub o-p/ at 500 MHz was simulated by Finite Element Model (FEM). Results show that, while severe eddy current damping was observed at the yoke region, an efficient design in the apex region can significantly reduce the eddy current damping at the pole tips, thus rendering sufficient magnetic flux at 1 Gb/s. The effects of magnetic yoke and interconnect on the current rise time were also simulated by SPICE model and were compared with empirical results. A reasonable agreement was obtained, Dynamic coercivities in the media were also characterized. Finally, magnetic recording at 1 Gb/s has been demonstrated on media as high as 4000 Oe of VSM coercivity and with better than 10/sup -7/ of bit error rate.
Sponsorship	IEEE Magnetics Society
Starting Page	613
Ending Page	618
Page Count	6
File Size	248052
File Format	PDF
ISSN	00189464
Volume Number	37
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic recording Magnetic heads Magnetic flux Coercive force Disk recording Eddy currents Damping Integrated circuit interconnections SPICE Magnetic analysis
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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