A current perpendicular to plane (CPP) magnetoresistive sensor having a
front edge that is recessed from the air bearing surface (ABS). The
sensor includes a pinned layer structure a free layer structure and a
spacer layer sandwiched between the free layer and the pinned layer. The
free layer is an AP coupled structure that includes a first magnetic
layer F1 a second magnetic layer F2 and a coupling layer sandwiched
between F1 and F2. The first magnetic layer F1 extends to the ABS while
the other sensor layers terminate at the recessed front edge. In this
way, the F1 layer acts as a flux guide that reacts to a magnetic field
from a magnetic medium. The AP coupled structure of the free layer allows
each magnetic layer F1 and F2 to be thicker than would be possible in a
conventional single layer free layer, which increases the GMR effect of
the sensor and increases the effectiveness of the flux guide (F2).