A magnetic reader of the present invention comprises an MR sensor shielded
by a magnetic shield including single domain soft magnetic materials. The
domain wall free magnetic shield includes an unbiased soft magnetic layer
and a biased soft magnetic layer separated by a non-magnetic layer. The
easy axis of the biased layer is oriented to create a path for magnetic
flux through the biased and unbiased layers thereby reducing the
demagnetization field of the shield. A biasing layer maintains the first
and second magnetic layers as single domain magnets. The biasing layer is
further shaped to define a quiet zone where the biasing layer does not
overlay the MR sensor.