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 thin-film magnetic device described above, the fixed magnetic layer is composed of 