Patent ID: 6292334
Filing Date: 2001-09-18
Classification: G11B

Abstract:
A thin film magnetic head comprising a magnetoresistive element layer, and shield layers formed to hold the magnetoresistive element layer therebetween, wherein each of the shield layers comprises a multilayered structure in which a plurality of magnetic layers are laminated with nonmagnetic intermediate layers held therebetween, the total absolute value of magnetic moments of the alternate magnetic layers of the plurality of magnetic layers, which are formed with the nonmagnetic intermediate layers held therebetween, is set to the same value as that of the remaining magnetic layers, and the opposite magnetic layers with the nonmagnetic intermediate layers held therebetween are magnetized in an antiparallel state in the direction of the track width, andwherein the anisotropic energy E of each of the magnetic layers which constitute the shield layers is 1000 to 6000 erg/cm.sup.3.