The spin transfer MRAM structure 1 further comprised of {HEAD ~ a circuit} that enables {TAIL ~ the bit sub cells} to be written to and read, comprising: 
enables
The spin transfer MRAM structure 1 further comprised of { HEAD ~ a circuit } that enables { TAIL ~ the bit sub cells } to be written to and read , comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH