Patent ID: 7355825
Filing Date: 2008-04-08
Classification: B82Y,G01R,G11B,H01F,H01L

Abstract:
1. A current-perpendicular-to-the-plane structure magnetoresistive element comprising: a magnetoresistive film extending rearward from a front end exposed at a medium-opposed surface; and domain controlling films extending rearward from front ends exposed at the medium-opposed surface, respectively, said magnetoresistive film interposed between the domain controlling films, wherein said domain controlling films respectively include: first regions designed to establish a first biasing magnetic field of a first intensity across the magnetoresistive film along the front end of the magnetoresistive film; and second regions designed to establish a second biasing magnetic field of a second intensity larger than the first intensity across the magnetoresistive film along a rear end of the magnetoresistive film, and wherein said first regions are made of a material of a first composition having a first residual magnetic flux density while said second regions are made of a material of a second composition having a second residual magnetic flux density larger than the first residual magnetic flux density.