{HEAD ~ The trilayer stack} has {TAIL ~ two free layers} separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface 
has
{ HEAD ~ The trilayer stack } has { TAIL ~ two free layers } separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH