Free layer for CPP GMR having iron rich NiFe

Details Free layer for CPP GMR having iron rich NiFe Free layer for CPP GMR having iron rich NiFe

2008-06-24

2008-06-24

Bashore, Alain L (Department: 1792)

Coating processes

Magnetic base or coating

C427S128000, C427S132000, C029S603070, C360S324120

Reexamination Certificate

active

07390529

ABSTRACT:
By using a free layer that includes a NiFe layer containing between 65 and 72 atomic percent iron, an improved CPP GMR device has been created. The resulting structure yields a higher CPP GMR ratio than prior art devices, while maintaining free layer softness and acceptable magnetostriction. A process for manufacturing the device is also described.

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Co-pending U.S. Patent Application, “Improved Seed/AFM Combination for CPP GMR Device”, U.S. Appl. No. 10/886,288, filed Jul. 7, 2004, assigned to the same assignee.
The 2002 IEEE Int'l Magnetic Conf., Apr. 28-May 2, RAI Congress, Center, Amsterdam, The Netherlands, Digest Intermag 2002, Section GA 02, “The Applicability of CPP-GMR for Over 100Gbpsi”.

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