Keepered media reproduction with dual MR heads

Frank Zhigang Wang; Na Helian; Desmond J Mapps; David Wilton; Warwick Clegg; Paul Robinson

doi:10.1109/20.706764

Keepered media reproduction with dual MR heads

Frank Zhigang Wang, Na Helian, Desmond J Mapps, David Wilton, Warwick Clegg, Paul Robinson

Research output: Contribution to journal › Article › peer-review

Abstract

The key technique in applying keepered media system in a reproduction is how to "open" the keeper layer. In this paper we propose a new concept of keepered-media-reproduction with Dual Magnetoresistive (DMR) heads. The keeper layer may be biased by the stray flux from DMR sensors, The shunting-releasing ratio between reproduced signals without and with a sense current is found to be -26 dB. This media system is completely stable against thermal demagnetization. It is believed that keepered media may offer a similar advantage with MR heads and potentially allow magnetics to break the 10 Gb/in/sup 2/ areal density barrier with the aid of the high performance gains of MR heads.

Original language	English
Pages (from-to)	1982-1984
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4
DOIs	https://doi.org/10.1109/20.706764
Publication status	Published - Jul 1998

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title = "Keepered media reproduction with dual MR heads",

abstract = "The key technique in applying keepered media system in a reproduction is how to {"}open{"} the keeper layer. In this paper we propose a new concept of keepered-media-reproduction with Dual Magnetoresistive (DMR) heads. The keeper layer may be biased by the stray flux from DMR sensors, The shunting-releasing ratio between reproduced signals without and with a sense current is found to be -26 dB. This media system is completely stable against thermal demagnetization. It is believed that keepered media may offer a similar advantage with MR heads and potentially allow magnetics to break the 10 Gb/in/sup 2/ areal density barrier with the aid of the high performance gains of MR heads.",

author = "Wang, \{Frank Zhigang\} and Na Helian and Mapps, \{Desmond J\} and David Wilton and Warwick Clegg and Paul Robinson",

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AU - Wang, Frank Zhigang

AU - Helian, Na

AU - Mapps, Desmond J

AU - Wilton, David

AU - Clegg, Warwick

AU - Robinson, Paul

PY - 1998/7

Y1 - 1998/7

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AB - The key technique in applying keepered media system in a reproduction is how to "open" the keeper layer. In this paper we propose a new concept of keepered-media-reproduction with Dual Magnetoresistive (DMR) heads. The keeper layer may be biased by the stray flux from DMR sensors, The shunting-releasing ratio between reproduced signals without and with a sense current is found to be -26 dB. This media system is completely stable against thermal demagnetization. It is believed that keepered media may offer a similar advantage with MR heads and potentially allow magnetics to break the 10 Gb/in/sup 2/ areal density barrier with the aid of the high performance gains of MR heads.

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VL - 34

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4

ER -

Keepered media reproduction with dual MR heads

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