MAGNETIC DETECTOR AND METHOD FOR MAKING THE SAME

摘要

A magnetic detector includes a magnetoresistive element and a fixed resistor that are constituted from identical laminates. Hard bias layers are disposed on two sides of the fixed resistor each with a gap therebetween. The magnetoresistive element includes a magnetic layer, magnetization direction of which is variable; the fixed resistor includes a magnetic layer corresponding to the magnetic layer of the magnetoresistive element; and the magnetization direction of the magnetic layer of the fixed resistor is pinned by a bias magnetic field from the hard bias layers