parallel to the magnetization direction of the fixed magnetic layer by an exchange coupling magnetic field formed by the other fixed magnetic layer and the other antiferromagnetic layer adjacent thereto; and a magnetization direction of a ferromagnetic layer, which is closest to the free magnetic layer among the ferromagnetic layers forming the fixed magnetic layer, and a magnetization direction of a ferromagnetic layer, which is closest to the free magnetic layer among the ferromagnetic layers forming the other fixed magnetic layer, are antiparallel to each other. According to the spin valve thin-film magnetic device described above, the fixed magnetic layer is composed of the even number 0