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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Curie's law ： ウィキペディア英語版 Curie's law In a paramagnetic material the magnetization of the material is (approximately) directly proportional to an applied magnetic field. However, if the material is heated, this proportionality is reduced: for a fixed value of the field, the magnetization is (approximately) inversely proportional to temperature. This fact is encapsulated by Curie's law: :$\backslash mathbf\; =\; C\; \backslash cdot\; \backslash frac,$ where :$\backslash mathbf$ is the resulting magnetisation :$\backslash mathbf$ is the magnetic field, measured in teslas :$T$ is absolute temperature, measured in kelvins :$C$ is a material-specific Curie constant. This relation was discovered experimentally (by fitting the results to a correctly guessed model) by Pierre Curie. It only holds for high temperatures, or weak magnetic fields. As the derivations below show, the magnetization saturates in the opposite limit of low temperatures, or strong fields. == Derivation with quantum mechanics == A simple model of a paramagnet concentrates on the particles which compose it which do not interact with each other. Each particle has a magnetic moment given by $\backslash vec$. The energy of a magnetic moment in a magnetic field is given by :$E=-\backslash vec\backslash cdot\backslash vec.$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Curie's law」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.