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Packing and Self-assembly of Truncated Triangular Bipyramids
Amir Haji-Akbari, Elizabeth R. Chen, Michael Engel +1
Motivated by breakthroughs in the synthesis of faceted nano- and colloidal particles, as well as theoretical and computational studies of their packings, we investigate a family of…
Hard-disk equation of state: First-order liquid-hexatic transition in two dimensions with three simulation methods
Michael Engel, Joshua A. Anderson, Sharon C. Glotzer +3
We report large-scale computer simulations of the hard-disk system at high densities in the region of the melting transition. Our simulations reproduce the equation of state, previ…
Self-Assembly of Patchy Particles into Diamond Structures through Molecular Mimicry
Zhenli Zhang, Aaron S. Keys, Ting Chen +1
Fabrication of diamond structures by self-assembly is a fundamental challenge in making three-dimensional photonic crystals. We simulate a system of model hard particles with attra…
Excitations are localized and relaxation is hierarchical in glass-forming liquids
Aaron S. Keys, Lester O. Hedges, Juan P. Garrahan +2
For several atomistic models of glass formers, at conditions below their glassy dynamics onset temperatures, , we use importance sampling of trajectory space to stu…
Degenerate Quasicrystal of Hard Triangular Bipyramids
Amir Haji-Akbari, Michael Engel, Sharon C Glotzer
We report a degenerate quasicrystal in Monte Carlo simulations of hard triangular bipyramids each composed of two regular tetrahedra sharing a single face. The dodecagonal quasicry…
Dense crystalline dimer packings of regular tetrahedra
Elizabeth R. Chen, Michael Engel, Sharon C. Glotzer
We present the densest known packing of regular tetrahedra with density phi = 4000/4671 = 0.856347... Like the recently discovered packings of Kallus et al. [arXiv:0910.5226] and T…
Growing Correlation Length on Cooling Below the Onset of Caging in a Simulated Glass-Forming Liquid
N. Lacevic, F. W. Starr, T. B. Schroder +2
We present a calculation of a fourth-order, time-dependent density correlation function that measures higher-order spatiotemporall correlations of the density of a liquid. From mol…
Filler-Induced Composition Waves in Phase-Separating Polymer Blends
Benjamin P. Lee, Jack F. Douglas, Sharon C. Glotzer
The influence of immobile filler particles (spheres, fibers, platelets) on polymer blend phase separation is investigated computationally using a generalization of the Cahn-Hilliar…