Nucleation-type magnetization behavior in FePt (001) particulate films

T. Shima*, K. Takanashi, Y. K. Takahashi, K. Hono, G. Q. Li, S. Ishio

*この研究の対応する著者

研究成果: Article査読

29 被引用数 (Scopus)

抄録

Nucleation-type magnetization behavior is reported in sputtered FePt (001) films with an island structure, where the particles show a multiple-domain structure. A large coercivity H C of more than 50 kOe is achieved at an initial applied field of only 6 kOe. The magnetization behavior and the magnetic domain observation indicate clearly that domain walls are wiped out completely at a low applied field, and once domain walls are wiped out, it is hard to nucleate reversed domains in the particles, resulting in high H C. The remarkable nucleation-type behavior of magnetization is also found to give rise to anomalous minor loops when the applied magnetic field is alternated around zero and increased gradually.

本文言語English
論文番号033516
ジャーナルJournal of Applied Physics
99
3
DOI
出版ステータスPublished - 2006 2 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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