at least one of {HEAD ~ the first and second magnetic metal layers} is formed to include {TAIL ~ oriented magnetic material} with a bcc structure, and 
at least one of { HEAD ~ the first and second magnetic metal layers } is formed to include { TAIL ~ oriented magnetic material } with a bcc structure , and
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH