X-RAY-SCATTERING STUDY OF CAPILLARY-WAVE FLUCTUATIONS AT A LIQUID SURFACE
X-RAY-SCATTERING STUDY OF CAPILLARY-WAVE FLUCTUATIONS AT A LIQUID SURFACE
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DOI：
10.1103/physrevlett.66.628
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发表时间：
1991-02-04
影响因子：
8.6
通讯作者：
OCKO, BM
中科院分区：
文献类型：
--
作者：
SANYAL, MK;SINHA, SK;OCKO, BM
本文报道了室温下乙醇液汽界面x射线散射的研究，并与基于标准连续统毛细管波理论的预测结果进行了详细的比较。得到了定量一致的结果，特别是验证了表面密度-涨落相关的代数衰减的扩散散射特性的渐近幂律。液体表面均方根波动为6.9 +/- 0.2埃。
A study of the scattering of x rays from the liquid-vapor interface of ethanol at room temperature is reported and compared in detail to predictions based on standard continuum capillary-wave theory. Quantitative agreement is obtained and, in particular, the asymptotic power laws in the diffuse scattering characteristic of the algebraic decay of the density-fluctuation correlations at the surface are verified. The root-mean-square fluctuation of the liquid surface is obtained as 6.9 +/- 0.2 angstrom.