| 摘要 |
PROBLEM TO BE SOLVED: To improve the stabilization in a magneto-resistive sensor making the current to flow in the direction of film thickness of a magneto-resistive film by suppressing the Barkhausen noise. SOLUTION: The magneto-resistive sensor is provided with the magneto- resistive film, a pair of electrodes 18 for making the current to flow in the direction of film thickness of the above magneto-resistive film and a magnetic flux guide 14 for guiding the magnetic flux from the surface of a recording medium to the magneto-resistive film, and the constitution controlled by both magnetic domain control films 15 of a free layer of the magneto-resistive film and the above magnetic flux guide 14.
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