Magnetic transducer and thin film magnetic head
AssigneeTDK Corporation
InventorsSatoru Araki, Masashi Sano, Yoshihiro Tsuchiya
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Abstract
An object of the invention is to provide a magnetic transducer and a thin film magnetic head having resistance properties adaptable to ultra-high-density recording. An MR element, the magnetic transducer, has a stack including a plurality of magnetic layers stacked alternately with a plurality of nonmagnetic layers. The stack has a first region and a second region into which the stack is divided in the direction of stacking thereof. The first and second regions of the stack differ from each other in the material or composition of the magnetic layers. The MR element has the above-described structure, thereby being capable of obtaining high resistance and a high rate of resistance change.
Claims16
A magnetic transducer comprising a stack having a plurality of magnetic layers stacked alternatively with a plurality of nonmagnetic layers;
- wherein the stack has a first region and a second region which are divided in the direction of stacking, the first region having a plurality of magnetic layers, and the second region having a plurality of magnetic layers, and at least one of the magnetic layers of the first region differs from the magnetic layers of the second region in material or composition, wherein a side surface of said first region is offset relative to a side surface of said second region in a direction perpendicular to said direction of stacking.
A magnetic transducer comprising a stack having a plurality of magnetic layers stacked alternately with a plurality of nonmagnetic layers,
- wherein the stack has a first region and a second region which are divided in the direction of stacking, the first region having a plurality of magnetic layers, and the second region having a plurality of magnetic layers, and at least one of the magnetic layers of the second region differs from the magnetic layers of the first region in material or composition, and a side surface of said first region is offset relative to a side surface of said second region in a direction perpendicular to said direction of stacking.
Dependencies are inferred from the claim text.