Patent ID: 6721149
Filing Date: 2004-04-13
Classification: B82Y,G01R,G11B

Abstract:
A magnetoresistive sensor for reading data from a recording media comprising:an antiferromagnetic layer; a pinned layer magnetically coupled to the antiferromagnetic layer, the pinned layer being a half metallic ferromagnet, the pinned layer further being capable of being provided without adversely affecting performance of the magnetoresistive sensor; a free layer, the free layer being magnetic; and an insulating spacer layer disposed between the pinned layer and the free layer, the insulating spacer layer being sufficiently thin to allow tunneling of charge carriers between the pinned layer and the free layer, the insulating spacer layer allowing for d-bonding between a portion of the free layer and a portion of the insulating spacer layer; wherein the pinned layer is provided such that the antiferromagnetic layer has a crystal structure substantially as deposited; wherein the insulating spacer layer further includes LaNiO3.