DIGITAL IMAGING STUDIES OF SUBMICRON COLLOIDAL SPHERES CONFINED INTO A SINGLE LAYER BETWEEN 2 SMOOTH GLASS PLATES - 2-DIMENSIONAL MELTING

被引：39

作者：

MURRAY, CA ^{[1
]}

VANWINKLE, DH ^{[1
]}

WENK, RA ^{[1
]}

机构：

[1] FLORIDA STATE UNIV, TALLAHASSEE, FL 32306 USA

来源：

PHASE TRANSITIONS | 1990年 / 21卷 / 2-4期

关键词：

colloids; digital imaging; Kosterlitz-Thouless phase transition; Two-dimensional melting;

D O I：

10.1080/01411599008206885

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Digital imaging is used to study the particle positions and trajectories of a layer of highly charged 0.3 μm diameter polystyrene spheres in water suspension, rigidly confined into two-dimensions between two smooth glass plates. As the in-plane sphere density is varied, we find a two-stage melting transition in which we observe separate divergences in the orientational and translational order at different densities, separated by roughly 4%. The topological defect statistics are complex, but qualitatively consistent with the predictions of Halperin and Nelson. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：93 / 126

页数：34

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