X-ray synchrotron study of liquid-vapor interfaces at short length scales: effect of long-range forces and bending energies.
X-ray synchrotron study of liquid-vapor interfaces at short length scales: effect of long-range forces and bending energies.
复制标题
短长度尺度液汽界面的 X 射线同步加速器研究：长程力和弯曲能的影响。
DOI：
10.1103/physrevlett.90.216101
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发表时间：
2003
影响因子：
8.6
通讯作者：
Bernd Struth
中科院分区：
文献类型：
--
作者：
Serge Mora;Jean Daillant;Klaus Mecke;D. Luzet;A. Braslau;M. Alba;Bernd Struth
我们用同步加速器x射线散射研究了不同分子结构和相互作用的液体的汽液界面的小尺度结构。由于长程力的影响，有效动量相关的表面能首先从宏观上减小，然后随着波矢的增大而增大。用最新的密度泛函理论对结果进行了分析。波矢的大幅增加归因于弯曲能，对弯曲能而言，局域和非局域贡献同等重要。
We have investigated the small-scale structure of the liquid-vapor interface using synchrotron x-ray scattering for liquids with different molecular structures and interactions. The effective momentum-dependent surface energy first decreases from its macroscopic value due to the effect of long-range forces, and then increases with increasing wave vector. The results are analyzed using a recent density functional theory. The large wave-vector increase is attributed to a bending energy for which local and nonlocal contributions are equally important.