ApplicationNo. 762994 filed on 09/20/1991
US Classes:360/126, Laminated360/127, Nonmetallic428/813, Substrate composition428/900MAGNETIC FEATURE
ExaminersPrimary: Thibodeau, Paul J.
Assistant: Resan, Stevan A.
Attorney, Agent or Firm
Foreign Patent References
International ClassG11B 005/14
Foreign Application Priority Data1988-02-25 JP
AbstractA non-magnetic substrate used for a magnetic head comprising a pair of non-magnetic substrates, and a magnetic layer structure sandwiched between the pair of non-magnetic substrates. The magnetic layer structure is comprised, of alternately laminated magnetic layers and intermediate insulating layers. The invention discloses for the substrate material a composition expressed by Znx My Co2-x-y O2, with the proviso that M is Mn or Ni, 0ࣘxࣘ0.4, 0.4ࣘyࣘ1.0, 0.8ࣘx+yࣘ1.0, or Cox Ni2-x O2, with the proviso that 0.2ࣘx ࣘ1.8, and having a rock-salt structure.