 magnetization directions of these fixed magnetic layers are parallel to each other, magnetization directions of ferromagnetic layers, which are closest to the free magnetic layer among ferromagnetic layers forming individual fixed magnetic layers, are simultaneously antiparallel to each other. Consequently, the magnetization direction of the free magnetic layer can be aligned in the direction perpendicular to the magnetization directions of these fixed magnetic layers. The magnetization direction of the free magnetic layer can generally be aligned in one direction by the bias layers. However, the magnetization direction of the free magnetic layer provided between the fixed magnetic layers may be inclined depending on the magnetizations thereof, and as a result, the asymmetry may not be reduced in some cases. However, according to the spin valve thin-film magnetic device described above, the magnetization direction of the free magnetic layer is unlikely to be influenced by the magnetizations of the fixed magnetic layers, and hence, the asymmetry can be reduced. In the spin valve thin-film magnetic device of the present invention described above, the direction of a magnetic field moment Hb0 of a ferromagnetic exchange coupling magnetic field formed by ferromagnetic interlayer coupling of the free magnetic layer and a ferromagnetic layer, which is closest to the free magnetic layer among the ferromagnetic layers forming the fixed magnetic layer, and the direction of a magnetic field moment Hb0 of a ferromagnetic exchange coupling magnetic field formed by ferromagnetic interlayer coupling of the free magnetic layer and 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 in the free magnetic layer. According to the spin valve thin-film magnetic device described above, since the directions of the magnetic moments Hb0 and Hb0 of the ferromagnetic interlayer coupling magnetic fields formed by the free magnetic layer and the individual ferromagnetic layers, which are closest to the free magnetic layer among the ferromagnetic layers forming the fixed magnetic layer and the other fixed magnetic layer, are antiparallel to each other in the free magnetic layer, the ferromagnetic interlayer coupling magnetic fields counteract each other, and hence, the magnetization direction of the free magnetic layer is not inclined by the ferromagnetic interlayer coupling magnetic fields. As a result, the magnetization direction of the free magnetic layer can be aligned in the direction perpendicular to those of the fixed magnetic layers, and hence, the asymmetry of the spin valve thin-film magnetic device can be reduced. In the spin valve thin-film magnetic device according to the present invention, it is preferable that the L be 0, the M be 0, and the 