An ultrahigh differential current perpendicular to the plane dual spin valve read {HEAD ~ head} with {TAIL ~ high pinning stability} 
An ultrahigh differential current perpendicular to the plane dual spin valve read { HEAD ~ head } with { TAIL ~ high pinning stability }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL