论文标题
在限制下，水的介电函数的异常及其在范德华相互作用中的作用
Anomaly of the dielectric function of water under confinement and its role in Van der Waals interactions
论文作者
论文摘要
由于水的静态介电函数的异常降低，我们提出了对Hamaker常数变化的理论计算。在限制下，水的介电函数从散装壁降低到2。如果限制壁是由介电材料制成的，则hamaker常数几乎减少了90 \％。但是，如果限制是用金属板实现的，则障碍物常数几乎没有变化。此外，我们表明可以使用限制来降低debye筛选长度而不改变盐浓度。反过来，这用于在存在电解质的情况下改变Hamaker常数。
We present a theoretical calculation of the changes in the Hamaker constant due to the anomalous reduction of the static dielectric function of water. Under confinement, the dielectric function of water decreases from a bulk value of 79 down to 2. If the confining walls are made of a dielectric material, the Hamaker constant reduces almost by 90\%. However, if the confinement is realized with metallic plates, there is little change in the Hamaker constant. Additionally, we show that confinement can be used to decreases the Debye screening length without changing the salt concentration. This, in turn, is used to change the Hamaker constant in the presence of electrolytes.
