Title :
Microtrack base line instability of spin valve heads
Author :
Zhong, Lieping ; Sanders, Doug ; Giusti, Jim ; Fernandez-de-Castro, Juan
Author_Institution :
Seagate Technol., Minneapolis, MN, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
The baseline shift in a micro-track profile of spin valve heads was investigated. Experimental and micro-magnetic modeling results were compared and found in close agreement. It was confirmed that the nonuniformity of pinning field and variation of anisotropy were among the potential sources of the formation of multi-states and the baseline instability. It was shown that the resulting instability could be suppressed by applying a strong permanent magnet stabilization field
Keywords :
magnetic anisotropy; magnetoresistive devices; permanent magnets; spin valves; anisotropy; baseline shift; micro-magnetic modeling; microtrack base line instability; multi-states formation; permanent magnet stabilization field; pinning field; spin valve heads; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic heads; Magnetic sensors; Magnetization; Magnetostatics; Micromagnetics; Permanent magnets; Perpendicular magnetic anisotropy; Spin valves;
Journal_Title :
Magnetics, IEEE Transactions on
