Patent ID: 6139908
Filing Date: 2000-10-31
Classification: B82Y,G01R,G11B,H01F,H01L,Y10S,Y10T

Abstract:
A method of producing a magnetoresistance device, comprising:preparing a single crystal substrate;forming a layer selected from the group consisting of an epitaxially grown .alpha.-Fe.sub.2 O.sub.3 layer and an uniaxially oriented .alpha.-Fe.sub.2 O.sub.3 layer, the .alpha.-Fe.sub.2 O.sub.3 layer serving as a coercive force enhancement layer on said substrate; andfurther growing a pinned ferromagnetic layer, a non-magnetic layer, and a free ferromagnetic layer successively and in that order on the .alpha.-Fe.sub.2 O.sub.3 layer.