NDLI: Performance of MP/sup ++/ and BaFe/sup ++/ tapes in high density recording applications

Content Provider	IEEE Xplore Digital Library
Author	Speliotis, D.E.
Copyright Year	1965
Abstract	Advanced tape recording is mostly dominated by metal particle (MP) media in helical scan analog and digital configurations. In the future, narrow track thin film write/MR read fixed head systems are likely to better satisfy the requirements for fast access and wide throughput combined with high areal densities for low storage cost. For densities above 100 kfci, the present MP tapes are severely limited mostly because of the large particle sizes. The just emerging MP/sup ++/ tapes utilize much smaller particles of higher magnetization and coercivity and offer superior performance. Even higher performance is offered by the advanced Barium Ferrite (BaFe/sup ++/) tapes, which utilize very small particles of high coercivity but, with less than half the magnetization of MP/sup ++/. The highest usable coercivity is limited by write head saturation and the MR read heads diminish the advantage of high magnetization. Double-Coating technology will at the same time provide the magnetic layer thinness and impart a continuing advantage to the particulate media which will be sufficient to retard or even block any potential competition from metal evaporated tapes (ME).
Sponsorship	IEEE Magnetics Society
Starting Page	2877
Ending Page	2882
Page Count	6
File Size	990532
File Format	PDF
ISSN	00189464
Volume Number	31
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-01
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 heads Audio recording Video recording Coercive force Ferrites Magnetic recording Transistors Throughput Saturation magnetization Digital magnetic recording
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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