Rotational diffusion of hard spheres: forward depolarized light-scattering measurements and comparison to theory and simulation
Rotational diffusion of hard spheres: forward depolarized light-scattering measurements and comparison to theory and simulation
复制标题
硬球的旋转扩散：前向去偏振光散射测量以及与理论和模拟的比较
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
V. Degiorgio
中科院分区：
文献类型：
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作者：
R. Piazza;V. Degiorgio
通过研究正向(零角)散射场随时间的变化，测量了硬球胶体粒子的旋转扩散系数。计算结果与以前用有限散射角去偏动态光散射得到的结果进行了比较。结合已有的理论结果和数值模拟，讨论了旋转扩散常数随浓度的变化规律。
By studying the time-dependence of the depolarized field scattered in the forward direction (zero angle), we have measured the rotational diffusion coefficient of hard-sphere colloidal particles. The results are compared to those we previously obtained by using depolarized dynamic light scattering at finite scattering angle. The experimental concentration-dependence of the rotational diffusion constant is discussed in relation to existing theoretical results and numerical simulations.