Calculation of Magnetic susceptibility of Ferromagnetic Material by Curie-Weiss Law.

Keyword

Ferroagnetic Susceptibility, Curie-Weiss Law,Number of Magnetic Moments,g Lande g-factor,Bohr magneton,Angular momentum quantum number,Boltzmann constant,Absolute Temperature,Paramagnetic Curie Temperature.

Reference

・The NIST Physics Laboratory.
・『物理学大辞典 第2版』(物理学大辞典編集委員会).
・『Charles Kittelキッテル固体物理学入門 第8版』.
Bohr magneton=927.400915*10^-26(J/T).
Boltzmann constant=1.3806504*10^-23(J/K).

Remarks

・χ:Magnetic Susceptibility.
・Curie-Weiss Law(χ=C/(T-θ)) is applicable when the temperature is much higher than Ferromagnetic Curie Temperature.
・J:Total Angular Momentum,S:Total Spin Angular Momentum(It is decided by number of unpaired electrons),L:Total Orbital Angular Momentum.
・J=S+L.
・Paramagnetic Curie Temperature(θ).※Reference:『物理学大辞典 第2版』(物理学大辞典編集委員会)

Material

θ(K)
Fe 1093
Co 1428
Ni 650

History

・2009/05/05:Upload.