Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Magnetoresistance effect type head
An improved output magnetoresistance effect type head having a spin valve type multilayered film which includes a non-magnetic metal layer, a ferromagnetic layer, a soft magnetic layer, and a pinning layer, where the soft magnetic bias assist layers formed on the soft magnetic layer changes its magnetization direction in an external magnetic field. Bias applying layers formed on these layers for applying a bias in a longitudinal direction of the soft magnetic layer are made of antiferromagnetic RuxMyMnz, where M is Rh, Pt, Pd, Au, Ag, Re, Ir and Cr, 1&lE;x&lE;30, 1&lE;y&lE;30, 69&lE;z&lE;90 and 10&lE;x+y&lE;31 and the unit of x, y, z is atomic %.
TDK Corporation
G B G
G11B B82Y G11B
inventional inventional inventional
Masashi Satoru Yoshihiro
Sano Araki Tsuchiya