Entropy-driven formation of the gyroid cubic phase

被引：47
|
作者：
Ellison, L. J. [1 ]
Michel, D. J.
Barmes, F.
Cleaver, D. J.
机构：
[1] Sheffield Hallam Univ, Mat & Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England
[2] Max Planck Inst Biophys Chem, D-37077 Gottingen, Germany
[3] Ctr Europeen Calcul Atom & Mol, F-69007 Lyon, France
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.97.237801
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show, by computer simulation, that tapered or pear-shaped particles, interacting through purely repulsive interactions, can freely self-assemble to form the three-dimensionally periodic, gyroid cubic phase. The Ia3d gyroid cubic phase is formed by these particles on both compression of an isotropic configuration and expansion of a smectic A bilayer arrangement. For the latter case, it is possible to identify the steps by which the topological transformation from nonintersecting planes to fully interpenetrating, periodic networks takes place.
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页数：4
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