Method and system for providing a dual spin filter

Details Method and system for providing a dual spin filter Method and system for providing a dual spin filter

2006-04-11

2006-04-11

Letscher, George J. (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C324S207210

Reexamination Certificate

active

07027268

ABSTRACT:
A method and system for providing a magnetoresistive sensor is disclosed. The method and system include providing a first pinned layer, providing a free layer having a length, and providing a first spacer layer disposed between the first pinned layer and the free layer. The first spacer layer has a first interface with the first pinned layer. The method and system also include providing a second pinned layer and providing a second spacer layer disposed between the free layer and the second pinned layer. The second spacer layer has a second interface with the second pinned layer. A direction of a current passed through the magnetoresistive sensor is through the first interface, through the second interface, and along at least a portion of the length of the free layer.

REFERENCES:
patent: 6252750 (2001-06-01), Gill

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