Patent ID: 6168860
Filing Date: 2001-01-02
Classification: B82Y,G11B,G11C,H01F,H01L,Y10S,Y10T

Abstract:
A magnetoresistive thin-film layered structure, said structure comprising: a substrate having a major surface portion; a magnetostrictive, magnetoresistive, anisotropic first ferromagnetic thin-film provided on said substrate major surface; a magnetostrictive, magnetoresistive, anisotropic second ferromagnetic thin-film provided on said first ferromagnetic thin-film with a magnetic moment differing therefrom to form a first composite thin-film therewith, said first composite thin-film being substantially free of magnetostriction; an intermediate layer provided on said second ferromagnetic thin-film with a thickness of less than 50 .ANG.; a magnetostrictive, magnetoresistive, anisotropic third ferromagnetic thin-film provided on said intermediate layer; and a magnetostrictive, magnetoresistive, anisotropic fourth ferromagnetic thin-film provided on said third ferromagnetic thin-film with a magnetic moment differing therefrom to form a second composite thin-film therewith, said second composite thin-film being substantially free of magnetostriction.