面心立方Ni-Co合金結晶の磁区模様

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タイトル別名
  • Ferromagnetic Domain Patterns on Face-Centered Cubic Nickel-Cobalt Alloy Crystals (Ferromagnetic Domain Patterns on Ni-Co Alloy and Pure Cobalt Crystals, I)
  • メン シンリッポウ Ni-Co ゴウキン ケッショウ ノ ジク モヨウ

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Ferromagnetic domain patterns have been observed, using the powder pattern technique, with single crystals of Ni-Co alloys containing 4, 6, 12, 18, 20, and 68%Co. Annealed 4∼20%Co-Ni single crystals revealed maze patterns after fairly severe electrolytic polish and proper domain patterns only after quitely severe electrolytic polish. Analysis of the observed domain patterns indicates that the first magnetocrystalline anisotropy constant, K1, is positive for 4∼18%Co, while it is negative for 20%Co. A domain pattern observed an a locally strained (100) surface of a 12%Co-Ni single crystal, which consists of 180° domain walls radiating from the loaded point, shows that the internal stress in the surface layer takes a distribution concentric around the loaded point. 68%Co-Ni single crystals revealed domain patterns characteristic to face-centered cubic crystals with K1<0.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (3), 225-229, 1961

    公益社団法人 日本金属学会

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