MAGNETO-RESISTIVE HEAD

摘要

A magneto-resistive head for detecting the magnetic signal of a recording medium as a reproduction signal, comprising a first magnetic shield, a first electrode terminal arranged on the first magnetic shield, a magneto-resistive film arranged on the first electrode terminal, and a magnetic domain control film arranged on the opposite sides of the magneto-resistive film in order to control the magnetic domain of the magneto-resistive film by applying a bias magnetic field in the first direction to the magneto-resistive film. The magneto-resistive head further comprises a second electrode terminal arranged on the magneto-resistive film, and a second magnetic shield arranged on the second electrode terminal. At the time of reproducing a magnetic signal, a sense current is fed across the first and second electrode terminals in the direction perpendicular to the film surface of the magneto-resistive film such that the current magnetic field is directed in the first direction at the end part of the magneto-resistive film facing the medium.