About: Hopkinson effect

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The Hopkinson effect is a feature of ferromagnetic or ferrimagnetic materials, in which an increase in magnetic susceptibility is observed at temperatures between the blocking temperature and the Curie temperature of the material. The Hopkinson effect can be observed as a peak in thermomagnetic curves that immediately precedes the susceptibility drop associated with the Curie temperature. It was first observed by John Hopkinson in 1889 in a study on iron. In single domain particles, a large Hopkinson peak results from a transient superparamagnetic particle domain state.

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  • The Hopkinson effect is a feature of ferromagnetic or ferrimagnetic materials, in which an increase in magnetic susceptibility is observed at temperatures between the blocking temperature and the Curie temperature of the material. The Hopkinson effect can be observed as a peak in thermomagnetic curves that immediately precedes the susceptibility drop associated with the Curie temperature. It was first observed by John Hopkinson in 1889 in a study on iron. In single domain particles, a large Hopkinson peak results from a transient superparamagnetic particle domain state. (en)
  • ホプキンソン効果（ホプキンソンこうか、英：Hopkinson effect）は、鋼板や岩石などに爆薬を密着させた状態で爆破した際に、その裏面に剥離が生じる現象である。 (ja)
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  • The Hopkinson effect is a feature of ferromagnetic or ferrimagnetic materials, in which an increase in magnetic susceptibility is observed at temperatures between the blocking temperature and the Curie temperature of the material. The Hopkinson effect can be observed as a peak in thermomagnetic curves that immediately precedes the susceptibility drop associated with the Curie temperature. It was first observed by John Hopkinson in 1889 in a study on iron. In single domain particles, a large Hopkinson peak results from a transient superparamagnetic particle domain state. (en)
  • ホプキンソン効果（ホプキンソンこうか、英：Hopkinson effect）は、鋼板や岩石などに爆薬を密着させた状態で爆破した際に、その裏面に剥離が生じる現象である。 (ja)
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  • Hopkinson effect (en)
  • ホプキンソン効果 (ja)
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