2016年6月
Pr-Fe-B+α-Fe nanocomposite film magnets prepared by pulsed laser deposition method
Japanese Journal of Applied Physics
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- 巻
- 55
- 号
- 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
- ID情報
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- DOI : 10.7567/JJAP.55.07ME01
- ISSN : 0021-4922
- CiNii Articles ID : 150000112734