MAGNETO-RESISTANCE EFFECT FILM, MAGNETO-RESISTANCE EFFECT TYPE HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE

摘要

PURPOSE: To obtain a structure of a multilayered magneto-resistance effect element for which an oxide antiferromagnetic material is used. ;CONSTITUTION: This magneto-resistance effect type head is constituted by using multilayered films, of which one layer of magnetic layer is impressed with the exchange bias magnetic field from the antiferromagnetic layer and one layer of the magnetic layer is not impressed with the exchange bias magnetic field from the antiferromagnetic layer, as the magneto-resistance effect material. The antiferromagnetic layer 16 consisting essentially of an oxide and having high corrosion resistance is formed on the side further from two layers of the material layers 13, 15 viewed from a substrate 11 formed with the multilayered films. Further, electrodes 17, 17 are formed after the antiferromagnetic layer of the part to be formed with the electrodes is removed. Then, the magneto- resistance effect element exhibits a high sensitivity and excellent soft magnetic characteristics. The high-performance magnetic head advantageous for a high- density magnetic recording and reproducing device is obtd. when this element is combined with an induction type magnetic head.;COPYRIGHT: (C)1995,JPO