Binary icosahedral quasicrystals of hard spheres in spherical confinement

D. Wang, T. Dasgupta, E.B. van der Wee, Daniela Zanaga, T. Altantzis, Y. Wu, G.M. Coli, C.B. Murray, Sara Bals, M. Dijkstra, A. van Blaaderen

Research output: Working paperPreprintAcademic

Abstract

The influence of geometry on the local and global packing of particles is important to many fundamental and applied research themes such as the structure and stability of liquids, crystals and glasses. Here, we show by experiments and simulations that a binary mixture of hard-sphere-like particles crystallizing into the MgZn2 Laves phase in bulk, spontaneously forms 3D icosahedral quasicrystals in slowly drying droplets. Moreover, the local symmetry of 70-80% of the particles changes to that of the MgCu2 Laves phase. Both of these findings are significant for photonic applications. If the stoichiometry deviates from that of the Laves phase, our experiments show that the crystallization of MgZn2 is hardly affected by the spherical confinement. Our simulations show that the quasicrystals nucleate away from the spherical boundary and grow along five-fold symmetric structures. Our findings not only open the way for particle-level studies of nucleation and growth of 3D quasicrystals, but also of binary crystallization.
Original languageEnglish
PublisherarXiv
Number of pages35
DOIs
Publication statusPublished - 2019

Fingerprint

Dive into the research topics of 'Binary icosahedral quasicrystals of hard spheres in spherical confinement'. Together they form a unique fingerprint.

Cite this