Coercivity Enhancement in la Coated Nd-Fe-B Thin Films

Kunihiro Koike, Hiroya Ishikawa, Daisuke Ogawa, Hiroaki Kato, Takamichi Miyazaki, Yasuo Ando, Masaru Itakura

研究成果: Contribution to journalConference article査読

3 被引用数 (Scopus)


The Nd-Fe-B/La thin films were deposited on the Al2O3(0001) substrate in order to investigate the effect of rare earth overlayer on the coercivity Hc. Highly textured Nd2Fe14B grains were grown by inserting the Mo(111) single crystal buffer layer. By depositing the La overlayer onto Nd2Fe14B thin films and subsequently post-annealing at 470 °C, the Hc value increased from about 10.5 kOe to 15.0 kOe. The amount of Hc increase by the combination of the La coating and post-annealing was about 4.5 kOe. After the post annealing, La oxide (hcp La2O3) was formed in the La layer, which was confirmed by means of XRD and SIMS depth profile measurements.

ジャーナルPhysics Procedia
出版ステータス出版済み - 2015
イベント20th International Conference on Magnetism, ICM 2015 - Barcelona, スペイン
継続期間: 7 5 20157 10 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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