论文标题
室温较低的室温hamaker系数
Retarded room temperature Hamaker coefficients between bulk elemental metals
论文作者
论文摘要
确切的LIFSHITZ理论用于系统地计算延迟的室温HAMAKER系数在26种相同的各向同性元素金属之间,这些元素嵌入了真空或纯水中。完整的光谱方法与Drude模型低频外推的补充,用于具有扩展频率介电数据输入的金属,而简单的光谱方法则用于水,并从三个介电表示的输入中使用。量化了公共Lifshitz近似值的准确性。提出了一种新型的紧凑型半经验表达,以用于对所有组合非常准确的Hamaker系数的分离依赖性。
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.