Glassy alloy composites for bit-patterned-media

N. Nishiyama, K. Takenaka, N. Saidoh, M. Futamoto, Y. Saotome, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


With the aim of developing a novel perpendicular bit-patterned-media, combined process of thermal imprinting of glassy alloy thin film and embedding Co/Pd multilayer was developed. Nano hole array with a hole diameter of 30 nm was successfully formed onto Pd-based glassy alloy thin film by thermal imprinting. Co/Pd multilayer was overlaid on a textured Pd-based glassy alloy thin film. After finishing by sputter etching, prototype bit-patterned-media was prepared. Switching behavior examined under magnetic field of ±10 kOe reveals that the isolated magnetic dots began to switch at 10 kOe. These results suggest that the prototype composite has a strong possibility for the realization of next generation bit-patterned-media with high data density.

Original languageEnglish
Pages (from-to)S145-S147
JournalJournal of Alloys and Compounds
Issue numberSUPPL. 1
Publication statusPublished - 2011 Jul 14


  • Glassy alloy composites
  • Magnetic recording media
  • Magnetic switching
  • Thermal nano-imprinting
  • Thin film


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