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