A transducing head includes at least three magnetic layers. At least two of
these magnetic layers function as shields of a reader portion of the
transducing head, and at least one of these magnetic layers functions as a
pole of a writer portion of the transducing head. Importantly, at least
one of the three magnetic layers is formed of a thin film structure having
a first and a second ferromagnetic layer, a nonmagnetic spacer layer, and
a bias layer. The spacer layer is positioned between the first and the
second ferromagnetic layers. The bias layer is positioned adjacent the
first ferromagnetic layer. The second ferromagnetic layer has a
thickness-magnetic moment product substantially equal to a
thickness-magnetic moment product of the first ferromagnetic layer. An
easy axis of the second ferromagnetic layer is substantially parallel to
an easy axis of the first ferromagnetic layer.
