論文

査読有り 筆頭著者
2016年6月

Pr-Fe-B+α-Fe nanocomposite film magnets prepared by pulsed laser deposition method

Japanese Journal of Applied Physics
  • Akihiro Yamashita
  • ,
  • Masaki Nakano
  • ,
  • Shuichi Oshima
  • ,
  • Takeshi Yanai
  • ,
  • Hirotoshi Fukunaga

55
7
開始ページ
07ME011
終了ページ
07ME013
記述言語
英語
掲載種別
DOI
10.7567/JJAP.55.07ME01
出版者・発行元
Institute of Physics

An increase in the remanence of an isotropic film magnet is indispensable to improve the properties of miniaturized devices. We, therefore, tried to prepare Pr–Fe–B/α-Fe multilayered nanocomposite thick-film magnets by a pulsed laser deposition (PLD) method. Namely, a rotated target composed of a Pr<inf>x</inf>Fe<inf>14</inf>B (x = 2.2 or 2.4) target together with an α-Fe segment was ablated. We also took account of a small spot size of the laser beam in order to suppress the emission of droplets (large particles) from each target. An optimization on the area of the α-Fe segment in each Pr<inf>x</inf>Fe<inf>14</inf>B target was carried out, and the remanence of an annealed film reached approximately 1.1 T. Moreover, a transmission electron microscopy (TEM) observation of the above-mentioned sample revealed that the microstructure varied from a multilayered structure (as-deposited) to a dispersed one through the annealing process. Resultantly, the annealed film had a dispersed nanocomposite structure with good exchange coupling.

リンク情報
DOI
https://doi.org/10.7567/JJAP.55.07ME01
CiNii Articles
http://ci.nii.ac.jp/naid/150000112734
ID情報
  • DOI : 10.7567/JJAP.55.07ME01
  • ISSN : 0021-4922
  • CiNii Articles ID : 150000112734

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