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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 constant ： ウィキペディア英語版 Curie constant The Curie constant is a material-dependent property that relates a material's magnetic susceptibility to its temperature. The Curie constant, when expressed in SI units, is given by :$C\; =\; \backslash fracN\; g^2\; J(J+1)$ where $N$ is the number of magnetic atoms (or molecules) per unit volume, $g$ is the Landé g-factor, $\backslash mu\_B$ (9.27400915e-24 J/T or A·m2) is the Bohr magneton, $J$ is the angular momentum quantum number and $k\_B$ is Boltzmann's constant. For a two-level system with magnetic moment $\backslash mu$, the formula reduces to :$C\; =\; \backslash fracN\; \backslash mu\_0\; \backslash mu^2$ The constant is used in Curie's Law, which states that for a fixed value of a magnetic field, the magnetization of a material is (approximately) inversely proportional to temperature. :$\backslash mathbf\; =\; \backslash frac\backslash mathbf$ This equation was first derived by Pierre Curie. Because of the relationship between magnetic susceptibility $\backslash chi$, magnetization $\backslash scriptstyle\backslash mathbf$ and applied magnetic field $\backslash scriptstyle\backslash mathbf$: :$\backslash chi\; =\; \backslash frac\}$ this shows that for a paramagnetic system of non-interacting magnetic moments, magnetization $\backslash scriptstyle\backslash mathbf$ is inversely related to temperature $T$ (see Curie's Law). ==See also== *Paramagnetism 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 constant」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.