A magnetoresistance device comprising at least two ferromagnetic layers separated by a non-magnetic layer, the coercive force of one of the ferromagnetic layers being enhanced by a coercive force enhancement layer of an antiferromagnetic material disposed adjacent to the one of the ferromagnetic layer...http://www.google.com.tw/patents/US6326092?utm_source=gb-gplus-share專利 US6326092 - Magnetoresistance device and production method thereof
