Contribution of Spin Fluctuations to the Electrical and Thermal Resistivities of Weakly and Nearly Ferromagnetic Metals
Contribution of Spin Fluctuations to the Electrical and Thermal Resistivities of Weakly and Nearly Ferromagnetic Metals
复制标题
自旋涨落对弱铁磁金属和近铁磁金属的电阻率和热阻的贡献
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
T. Moriya
中科院分区：
文献类型：
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作者：
K. Ueda;T. Moriya
利用s-d带模型和d带电子的自洽重整化自旋涨落理论，研究了弱铁磁和近铁磁金属自旋涨落引起的电电阻率和热电阻率。在整个感兴趣的温度范围内计算电阻率，并详细讨论了它们与温度的关系。利用自旋涨落的RPA结果计算出的电阻率经重整化后被显著抑制。特别是电阻率会随着温度的升高而趋于饱和。
The electrical and thermal resistivities due to the spin fluctuations in weakly and nearly ferromagnetic metals are studied by using the s-d band model and the self-consistently renormalized spin fluctuation theory for the d-band electrons. The resistivities are calculated in the whole temperature range of interest and their temperature dependences are discussed in detail. The resistivities are shown to be suppressed significantly by the renormalization from those calculated by using the RPA results for the spin fluctuations. Particularly the electrical resistivity can have a tendency towards saturation with increasing temperature.