The MTJ free layer rotates in response to switching in the CPP free layer because of {HEAD ~ a large demagnetization field} exerted by {TAIL ~ the CPP free layer} 
The MTJ free layer rotates in response to switching in the CPP free layer because of { HEAD ~ a large demagnetization field } exerted by { TAIL ~ the CPP free layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL