New Ni5Al3 Underlayer for Longitudinal Magnetic Recording Media

نویسندگان

  • Yu-Nu Hsu
  • David N. Lambeth
  • David E. Laughlin
چکیده

We describe a new Ni5Al3 underlayer for high-density longitudinal magnetic recording. The Ni5Al3 underlayer has the FCC derivative Ga3Pt5 structure. The Ni5Al3 (221) plane has good lattice match with the CoCrPt (10 1 0) plane. In addition, unlike the NiAl (112) plane, the Ni5Al3 (221) plane has the lowest surface energy. Hence, the Ni5Al3 thin film has a strong (221) texture and can induce CoCrPt (10 1 0) texture. The microstructure and magnetic properties of the CoCrPt–Ni5Al3 thin films are reported and discussed.

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تاریخ انتشار 2001