Patent ID: 7046487

Claim:
A magnetoresistive effective element comprising a magnetoresistive effective film, magnetic domain-controlling films, a first magnetic shielding film, a second magnetic shielding film and antiferromagnetic films, said magnetic domain-controlling films being disposed at both sides of said magnetoresistive effective film in a width direction thereof, respectively, and imparting control function of magnetic domain to said magnetoresistive effective film, said first magnetic shielding film being disposed on one surface of said magnetoresistive effective film in a thickness direction thereof, said second magnetic shielding film being disposed on the other surface of said magnetoresistive effective film in said thickness direction thereof, said antiferromagnetic films being disposed in between said first magnetic shielding film and said second magnetic shielding film, adjacent to and bonded through exchange interaction with at least one of said first magnetic shielding film and said second magnetic shielding film.