Patent ID: 6621666
Filing Date: 2003-09-16
Classification: B82Y,G01R,G11B,H01F,Y10T

Abstract:
A magnetoresistive-effect element comprising:a magnetoresistive-effect thin film operating as a magnetism sensing section; a pair of hard magnetic layers formed respectively at opposite ends of said magnetoresistive-effect thin film and adapted to apply a bias magnetic field to said magnetoresistive-effect thin film; a pair of electrode layers formed oppositely on the main suffaces of the magnetoresistive-effect thin film and adapted to supply an electric current to said magnetoresistive-effect thin film; and a magnetization fixing layer formed as a lowermost layer of the magnetoresistive-effect thin film, said magnetization fixing layer including anti-ferromagnetic material, wherein said hard magnetic layers having an electric resistivity not lower than 0.5 &OHgr;cm, and said anti-ferromagnetic material is made of RhMn, IrMn, PtMn, and NiMn.