a first magnetic material layer which comprises a magnetic material and has {HEAD ~ a first magnetization} directed in {TAIL ~ a direction} perpendicular to a film surface 
a first magnetic material layer which comprises a magnetic material and has { HEAD ~ a first magnetization } directed in { TAIL ~ a direction } perpendicular to a film surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH