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