A magnetoresistive sensor has {HEAD ~ at least a trilayer stack} comprising {TAIL ~ a cap layer}, a first ferromagnetic layer, and a second ferromagnetic layer separated by a nonmagnetic layer 
A magnetoresistive sensor has { HEAD ~ at least a trilayer stack } comprising { TAIL ~ a cap layer } , a first ferromagnetic layer , and a second ferromagnetic layer separated by a nonmagnetic layer
OTH OTH OTH OTH HEAD HEAD 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