Abstract

Within the framework of the coherent potential approximation for the s-d model, we compute the electrical resistivity \(\rho\) and Hall coefficient \(R_{o}\) of disordered paramagnetic Au\({}_{x}\)Pd\({}_{1-x}\) alloys, taking the electron–phonon interaction into account. Based on the example of these alloys, the mechanisms responsible for the correlation between the resistivity and its temperature coefficient (Mooij rule) and the correlation between temperature dependencies of \(\rho\) and \(R_{o}\) are discussed. The results are in good agreement with the experimental data.

中文翻译：

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电阻的温度依赖性和无序Au $$ {} _ {x} $$ Pd $$ {} _ {1-x} $$合金的霍尔效应

摘要

在sd模型的相干势近似框架内，我们计算了无序顺磁Au \ {{} _ {x} \} Pd的电阻率\（\ rho \）和霍尔系数\（R_ {o} \）\（{} _ {1-x} \）合金，并考虑了电子与声子的相互作用。基于这些合金的例子，讨论了引起电阻率与其温度系数之间的相关性（Mooij规则）以及\（\ rho \）和\（R_ {o} \）之间温度相关性的机理。结果与实验数据吻合良好。