High Coercivity of Co-Ferrite Thin Films Prepared by Sol-Gel Method

Hitoshi Ohashi, Yasuo Okazaki, Yutaka Ohya, Shunji Yanase, Shuichiro Hashi

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Magnetic properties related to nano-structure have been investigated for sol-gel grown spinel Co-ferrite thin films of which thickness was 200–300 nm controlled by spin coating. The magnetic properties depended on the annealing temperature, and the coercivity of 6.3 kOe was obtained at 923 K, which is about three times higher than that ever reported in Co-ferrite thin films by sol-gel method. The microstructure transformed into columnar from granular at the annealing temperature of 923 K, where magnetic anisotropy and high squareness ratio was observed.

本文言語English
ページ(範囲)2891-2893
ページ数3
ジャーナルIEEE Transactions on Magnetics
42
10
DOI
出版ステータスPublished - 2006 10月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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