A magnetoresistive element has a magnetoresistive film and a pair of
electrodes adapted to flow a sense current in a direction substantially
perpendicular to a plane of the magnetoresistive film. The
magnetoresistive film includes first and second magnetization free layers
and first to fourth magnetization pinned layers with nonmagnetic
intermediate layers interposed therebetween. The second magnetization
pinned layer and the third magnetization pinned layer are formed between
the second nonmagnetic intermediate layer and the third nonmagnetic
intermediate layer. The directions of magnetization of the first and
second magnetization pinned layers are substantially parallel to each
other. The directions of magnetization of the third and fourth
magnetization pinned layers are substantially parallel to each other.
Further, the direction of magnetization of the second magnetization
pinned layer is substantially antiparallel to the direction of
magnetization of the third magnetization pinned layer.