Patent ID: 6101071
Filing Date: 2000-08-08
Classification: B82Y,G11B,H01F,H01L

Abstract:
A multi-layered magneto-resistance effect film comprising:an upper magnetic layer and a lower magnetic layer; anda multi-layered film between said upper and lower magnetic layers, said multi-layered film comprising alternately layered magnetic layers and non-magnetic electrically conductive layers;wherein,each of said upper and lower magnetic layers has a resistivity larger than that of said magnetic layers of said multi-layered film,said magnetic layers of said multi-layered film are anti-ferromagnetically coupled to one another,said magnetic layers of said multi-layered film have alternating directions of magnetization in the absence of an external magnetic field,said upper and lower magnetic layers between which the multi-layered film is positioned extend out to an end face of the magneto-resistance effect film,said upper and lower magnetic layers are electrically conductive and are formed of a magnetic material, andsaid magnetic material of said upper and lower magnetic layers is a Ni--Fe alloy including at least one selected from the group consisting of Ti, Cr and Cu.