Browse Prior Art Database

Co-Ferrite AP-PINNED Spin Valve

IP.com Disclosure Number: IPCOM000015221D
Original Publication Date: 2001-Dec-25
Included in the Prior Art Database: 2003-Jun-20
Document File: 1 page(s) / 36K

Publishing Venue

IBM

Abstract

We disclose GMR head structure where pinned layer pinning is achieved using Co-modfified Fe2O3 layer. The structure is as follows: Shield/Al2O3/CoxFe2O3/CoFe/Ru/CoFe/Cu/CoFe/Ta/Al2O3/Sield. The high corecivity of Cox (Fe2O3)y where x 2 to 3% achieves pinning while being insulative reduces current shunting and improves GMR. 1

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Co-Ferrite AP-PINNED Spin Valve

    We disclose GMR head structure where pinned layer pinning is achieved using Co-modfified Fe2O3 layer. The structure is as follows: Shield/Al2O3/CoxFe2O3/CoFe/Ru/CoFe/Cu/CoFe/Ta/Al2O3/Sield. The high corecivity of Cox (Fe2O3)y where x = 2 to 3% achieves pinning while being insulative reduces current shunting and improves GMR.

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