着磁可能Sm2Fe17N3磁石多磁区粒子における着磁および核生成挙動の解析

• 小林 久理真

  静岡理工科大学理工学部物質科学科（フランス国立科学研究院ルイ·ネール磁性研究所）

書誌事項

タイトル別名

• Magnetization and Nucleation Behavior of Saturable Multi-Domain Particles in Sm2Fe17N3 Magnetic Powders
• チャクジ カノウ Sm2Fe17N3 ジシャク タ ジク リュウシ ニ オケル

抄録

Sm₂Fe₁₇N₃ powders used in permanent magnets are composed of three types of particle: (1) single-domain particles (SDPs), (2) multi-domain particles (MDPs) in which the domain walls move under a relation of H_appl. = NM, where N is a demagnetizing factor, M is the magnetization in a particle and H_appl. is an applied magnetic field, and (3) particles that behave as MDPs in a demagnetized state, but can be magnetized to become SDPs under a certain magnetic field and behave as SDPs unless renucleation occurs. The authors studied the magnetization and nucleation behavior of the last type of particles, which they call saturable multi-domain particles (SMDPs). In this report, the relation between magnetization and nucleation fields in SMDPs is measured for isolated and isotropically distributed Sm₂Fe₁₇N₃ particles.

収録刊行物

• 日本応用磁気学会誌

  日本応用磁気学会誌 22 (4_2), 357-360, 1998

  公益社団法人 日本磁気学会

キーワード

• magnetic reversal
• coercivity
• Sm₂Fe₁₇N₃ particles
• single- and multi-domain particles
• nucleation
• magnetization

詳細情報

• CRID: 1390001205092847744
• NII論文ID: 110002811432
• NII書誌ID: AN0031390X
• DOI: 10.3379/jmsjmag.22.357
• ISSN: 18804004
• ISSN: 02850192
• NDL書誌ID: 4458042
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4458042
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10463850
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