Browse Prior Art Database

Vertical Recording Magnetic Head

IP.com Disclosure Number: IPCOM000053180D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Schwartz, TA: AUTHOR

Abstract

Vertical recording is accomplished with a magnetic head that has two vertical pole pieces 1 and 2, which may be made from permalloy, for example. Both pole pieces are magnetized in the same direction by the recording current that passes through opposed coils 3 and 4. The two pole pieces tend to cancel the horizontal field components at the air-bearing surface 7, and serve as shields for the magnetoresistive element 5 during the read mode.

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Vertical Recording Magnetic Head

Vertical recording is accomplished with a magnetic head that has two vertical pole pieces 1 and 2, which may be made from permalloy, for example. Both pole pieces are magnetized in the same direction by the recording current that passes through opposed coils 3 and 4. The two pole pieces tend to cancel the horizontal field components at the air-bearing surface 7, and serve as shields for the magnetoresistive element 5 during the read mode.

The substrate 6 may be made from a soft magnetic layer of permalloy to operate in the vertical recording system.

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