大块金属元素间的延迟室温Hamaker系数
Retarded room temperature Hamaker coefficients between bulk elemental metals
摘要：
利用精确的Lifshitz理论，系统地计算了26种相同的各向同性金属元素在真空或纯水中的延迟室温Hamaker系数。全谱方法，补充与德鲁德模型低频外推，用于金属与输入扩展的频率介电数据，而简单的谱方法用于水与输入从三个介电表示。常见的Lifshitz近似的准确性进行量化。提出了一种新的紧凑的半经验表达式的分离依赖的Hamaker系数，被证明是非常准确的所有组合。
英文摘要：
The exact Lifshitz theory is utilized for the systematic calculation of the retarded room temperature Hamaker coefficients between 26 identical isotropic elemental metals embedded in vacuum or pure water. The full spectral method, complemented with a Drude model low frequency extrapolation, is employed for metals with input from extended-in-frequency dielectric data, while the simple spectral method is employed for water with input from three dielectric representations. The accuracy of common Lifshitz approximations is quantified. A novel compact semi-empirical expression is proposed for the separation-dependence of the Hamaker coefficient that is demonstrated to be very accurate for all combinations.
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