Mechanism of Magnetization Reversal of Rare-Earth Orthoferrite Single Crystals

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概要

• 論文の詳細を見る

• Magnetization curves have been measured on various single crystals of rare-earth orthoferrites. As crystal perfection increases, the coercive force _IH_c increases, but its dependence on the amplitude of an applied field decreases. Two origins of _IH_c are considered to account for the observation. One is the critical field to expand a domain at a "seed". The other is the nucleation field, H_D, at defects like dislocation. It is concluded that the highest observed value of 1000 Oe results from H_D. It has been also observed that many magnetization curves are asymmetric. The origin of the asymmetry is attributed to the existence of antiferromagnetic parts on the crystal surface.

• 社団法人応用物理学会の論文
• 1973-04-05

著者

• Hirano Mikio

  Central Research Laboratory Hitachi Ltd.

• KAMOSHITA Gen-ichi

  Central Research Laboratory, Hitachi, Ltd.

• Mikami Itsuo

  Central Research Laboratory Hitachi Ltd.

• Kamoshita Gen-ichi

  Central Research Laboratory Hitachi Ltd.

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