L10 FePt(111)/glassy CoFeTaB bilayered structure for patterned media

Parmanand Sharma, Neelam Kaushik, Akihiro Makino, Masayoshi Esashi, Akihisa Inoue

研究成果: Article査読

8 被引用数 (Scopus)


We report on the use of CoFeTaB metallic glass thin film as a soft magnetic underlayer which promotes the growth of L10 FePt along the preferred (111) crystallographic direction. The preferred oriented phase of L1 0 FePt is obtained by either in situ deposition upon a heated CoFeTaB/SiO2/Si or at room temperature (FePt/CoFeTaB/SiO 2/Si) followed by annealing at 400-450 C for 15 min. The latter process is shown to be advantageous in terms of the fabrication of patterned media. Pattern sizes ranging from 25-100 nm made from L10 FePt (111)/glassy CoFeTaB were fabricated by photo/electron beam lithography. The structural and magnetic characterizations strongly suggest the applicability of the present bilayered structure in the fabrication of high density bit-patterned magnetic recording media.

ジャーナルJournal of Applied Physics
出版ステータスPublished - 2011 4月 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)


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