Magnetic element with varying stripe heights
AssigneeSeagate Technology LLC
InventorKaizhong Gao
Life of this patent
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Abstract
A magnetically responsive magnetic stack with a first stripe height is positioned laterally adjacent first and second side stacks that respectively extend a second and third distance from an air bearing surface (ABS). The second distance is greater than the third distance capable of biasing the magnetic stack to a predetermined magnetization.
Claims19
An apparatus comprising:
- a magnetically responsive magnetic stack with a first stripe height distance from an air bearing surface (ABS) positioned laterally adjacent first and second side stacks that respectively extend second and third stripe height distances from the ABS, the second stripe height distance being greater than the third stripe height distance and the first stripe height distance being between the second and third stripe height distances in order to bias the magnetic stack to a predetermined magnetization.
A magnetic element comprising:
- a magnetically responsive magnetic stack comprised of dual ferromagnetic free layers separated by a non-magnetic spacer layer, the magnetic stack having a first stripe height from an air bearing surface (ABS);
- a first side stack with a second stripe height positioned laterally adjacent the magnetic stack;
- and
- a second side stack with a third stripe height positioned laterally adjacent the magnetic stack and opposite the first side stack, the second stripe height being greater than the third stripe height and the first stripe height being between the second and third stripe heights.
A method comprising disposing a magnetically responsive magnetic stack with a first stripe height laterally between first and second side stacks that respectively extend second and third stripe height distances from an air bearing surface (ABS), and configuring the second strip height distance to be greater than the third stripe height distance and the first stripe height to be between the second and third stripe height distances to bias the magnetic stack to a predetermined magnetization.
Dependencies are inferred from the claim text.