The free layer 11 and pinned layer 12 may have {TAIL ~ a structure} including {HEAD ~ stacked magnetic layers} 
The free layer 11 and pinned layer 12 may have { TAIL ~ a structure } including { HEAD ~ stacked magnetic layers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD