Patent ID: 6927952
Filing Date: 2005-08-09
Classification: B82Y,G11B,H01L

Abstract:
1. A magnetoresistive device comprising: a laminated film; and a mechanism for applying sense current in a direction of lamination in said laminated film, wherein said laminated film includes: a first ferromagnetic layer having a substantially fixed direction of magnetization; a second ferromagnetic layer having a freely variable direction of magnetization according to an external magnetic field, said second ferromagnetic layer including a non-magnetic metal layer, and two or more ferromagnetic metal layers separated from each other by the non-magnetic metal layer in the direction of lamination; and a non-magnetic intermediate layer that separates said first and second ferromagnetic layers from each other, and wherein said two or more ferromagnetic metal layers in said second ferromagnetic layer have parallel directions of magnetization.