SINGLE-PARTICLE DYNAMICS IN A COLLOIDAL CRYSTAL

被引：24

作者：

PIAZZA, R

DEGIORGIO, V

机构：

[1] Dipartimento di Elettronica-Sezione di Fisica Applicata, Università di Pavia

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.67.3868

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A colloidal crystal formed by spherical latex particles possessing intrinsic optical anisotropy is studied by light scattering. Dynamic depolarized scattering gives information about the "self-motion" of particles within the crystal. It is found that the particles behave as Brownian harmonic oscillators with a finite escape time from the potential well. The mean-square displacement of the particle within the crystal is obtained from the experimental data. It is also found that the short-time rotational diffusion rate in the colloidal crystal is larger than in a dilute suspension.

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页码：3868 / 3871

页数：4

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