MAGNETORESISTIVE EFFECT ELEMENT, MANUFACTURING METHOD THEREOF AND MAGNETORESISTIVE EFFECT MAGNETIC HEAD

摘要

PROBLEM TO BE SOLVED: To assure the soft magnetic characteristics of a so-called free layer while magnetoresistance change rate is improved. SOLUTION: A magneto-sensitive part 9 whose electric resistance changes according to external magnetic field is provided, and a low-resistance metal layer 10 is so formed as to contact the magneto-sensing part 9. An oxide layer 11 is formed on the surface opposite to a surface of the low-resistance metal layer 10 which contacts the magneto-sensing part 9.