Glassy dynamics of convex polyhedra

被引:11
|
作者
Tasios, Nikos [1 ]
Gantapara, Anjan Prasad [1 ]
Dijkstra, Marjolein [1 ]
机构
[1] Univ Utrecht, Debye Inst Nanomat Sci, NL-3584 CC Utrecht, Netherlands
来源
JOURNAL OF CHEMICAL PHYSICS | 2014年 / 141卷 / 22期
关键词
RANDOM CLOSE PACKING; SILVER NANOPARTICLES; GOLD NANOPARTICLES; COMPLEX STRUCTURES; LIQUIDS; TRANSITION; RELAXATION; SPHERES; CUBES; NANOCRYSTALS;
D O I
10.1063/1.4902992
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Self-assembly of polyhedral-shaped particles has attracted huge interest with the advent of new synthesis methods that realize these faceted particles in the lab. Recent studies have shown that polyhedral-shaped particles exhibit a rich phase behavior by excluded volume interactions alone; some of these particles are even alleged to show a transition to a glass phase by quenching the liquid sufficiently fast beyond the glass transition (supercooling), such that the formation of structures with long-range order is suppressed. Despite the recent progress, no study has been made on the glass formation of polyhedral-shaped particles. Here, we study the glass behavior of polyhedral particles using advanced Monte Carlo methods. We investigate the formation of a glass of monodisperse hard polyhedral-shaped particles, namely, octahedra, tetrahedra, and triangular cupola, using simulations. Finally, the fragility of these particles is determined and compared to that of a polydisperse hard-sphere system. (C) 2014 AIP Publishing LLC.
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页数:7
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