Patent ID: 6326637
Filing Date: 2001-12-04
Classification: B82Y,G11B,H01F,H01L

Abstract:
An antiferromagnetically exchange-coupled structure for use in a magnetic device of the type having a substrate and a plurality of ferromagnetic layers formed on the substrate, the structure comprising.an underlayer on the substrate, the underlayer being a material selected from the group consisting of Pt, Pd, and alloys of Pt or Pd;an antiferromagnetic layer on the underlayer, the antiferromagnetic layer being a material comprising Os.sub.x Mn.sub.1-x, where x is between approximately 10 and 30 atomic percent; anda ferromagnetic layer on and in contact with the antiferromagnetic layer, the ferromagnetic layer having its magnetic moment pinned by being exchange biased with the antiferromagnetic layer.