A magnetoresistive head includes a first magnetic shield, a first
electrode terminal arranged on the first magnetic shield at an entry side
of a magnetic field from a carrier, a third electrode terminal that is
spaced from the first electrode terminal, and arranged on the first
magnetic shield at a side opposite to the entry side of the magnetic
field from the carrier, a magnetoresistive coating arranged on the first
and third electrode terminals, a second electrode terminal that is
arranged on the magnetoresistive coating, and opposed to the first
electrode terminal, a second magnetic shield arranged on the second
electrode terminal, and a sense current source connected to the first and
second electrode terminals, which applies sense current in a direction
perpendicular to a coating surface of the magnetoresistive coating.