The present invention provides a pinned layer which has a middle film of cobalt iron niobium (CoFeNb) or cobalt iron niobium hafnium (CoFeNbHf) between first and second cobalt based films, such as cobalt iron (CoFe) or cobalt (Co). The first film is exchange coupled to a nickel oxide (NiO) pinning layer...http://www.google.fr/patents/US6549383?utm_source=gb-gplus-shareBrevet US6549383 - Pinned layer having a CoFeNb or CoFeNbHf film for increasing magnetic softness and reducing current shunting
Pinned layer having a CoFeNb or CoFeNbHf film for increasing magnetic ...