DocumentCode
1480113
Title
Narrow end-on giant magnetoresistance READ-head sensors
Author
Pohm, A.V. ; Beech, R.S. ; Anderson, J.M. ; Black, W.C.
Author_Institution
Nonvolatile Electron. Inc., Eden Prairie, MN, USA
Volume
33
Issue
3
fYear
1997
fDate
5/1/1997 12:00:00 AM
Firstpage
2392
Lastpage
2396
Abstract
End-on (vertical) giant magnetoresistance (GMR) head sensors can be made with high sensitivity and high permeability by use of the parallel coupling existing in sandwich materials and by having the effective easy axis along, rather than across, the sensor. Sensors with widths ranging from 0.75-2.0 μm and with sense currents of 3-4 mA per μm yield near linear peak to peak outputs greater than 1 mV in shielded head structures. For stability, the edge magnetization must be pinned. End-on head sensors are found to be particularly attractive for narrow heads
Keywords
giant magnetoresistance; magnetic heads; magnetic sensors; magnetoresistive devices; easy axis; end-on giant magnetoresistance read head sensor; parallel coupling; permeability; sandwich material; sensitivity; vertical head sensor; Anisotropic magnetoresistance; Composite materials; Copper; Couplings; Giant magnetoresistance; Magnetic heads; Magnetic materials; Magnetic sensors; Magnetization; Permeability;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.573863
Filename
573863
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