Exotic crystal superstructures of colloidal crystals in confinement

被引：18
|
作者：
Fontecha, Ana Barreira [1 ]
Schoepe, Hans Joachim [1 ]
机构：
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany
来源：
PHYSICAL REVIEW E | 2008年 / 77卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.77.061401
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Colloidal model systems have been used for over three decades for investigating liquids, crystals, and glasses. Colloidal crystal superstructures have been observed in binary systems of repulsive spheres as well as oppositely charged sphere systems showing structures well known from atomic solids. In this work we study the structural transition of colloidal crystals under confinement. In addition to the known sequence of crystalline structures, crystal superstructures with dodecagonal and hexagonal symmetry are observed in one component systems. These structures have no atomic counterpart.
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