Effect of particle size on the magnetization process in lithographic arrays of Nd2Fe14B

Hitoshi Kubota, Takayuki Ikari, Yasuo Ando, Hiroaki Kato, Terunobu Miyazaki

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

Controlled arrays of Nd2Fe14B were fabricated via sputtering and lithography. The arrays were fabricated via optical and electron-beam lithography combined with dry etching technique. Designed particle size varies from 10 μmX10 μm to 0.5 μmX0.5 μm. We found an increase in the coercive field with decreasing particle size. Results of the micromagnetic calculations suggest that the coercive-field increase in smaller-sized particles is originated from the effective decrease in the exchange-coupling energy owing to the relative increase in the fraction of surface grain.

本文言語English
ページ(範囲)6325-6327
ページ数3
ジャーナルJournal of Applied Physics
87
9 III
DOI
出版ステータスPublished - 2000 5 1
イベント44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States
継続期間: 1999 11 151999 11 18

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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