A magneto-resistance effect element is adapted that a non-magnetic layer
(9, 18), a free layer (3b, 19), another non-magnetic layer (4, 25), a
fixed layer (5, 26), and a fixing layer (6b, 27) are formed vertically
symmetric with respect to a first magnetic layer (8b), to which a
vertical bias magnetic field is applied from an underlying layer (2a) for
a vertical bias layer (2b). The magneto-resistance effect element
operates in CPP mode. Generally, the free layer is unavoidably subjected
to the influence of a circular electric magnetic field caused by a
current flowing perpendicularly to the film surface. However, in the
magneto-resistance effect element, the influence of the electric magnetic
field to which the free layer (3b) is subjected is opposite to that of
the electric magnetic field to which the second free layer (19) is
subjected, thereby canceling out the influences as a hole.