View source for Grain Boundary Scars and Spherical Crystallography

by Lidiya Mishchenko


== Reference ==
A. R. Bausch, M. J. Bowick, A. Cacciuto, A. D. Dinsmore, M. F. Hsu, D. R. Nelson, M. G. Nikolaides, A. Travesset, D. A. Weitz, Grain Boundary Scars and Spherical Crystallography, ''Science'' '''299''', 1716-1718 (2003).


== Abstract ==
"We describe experimental investigations of the structure of two-dimensional
spherical crystals. The crystals, formed by beads self-assembled on water droplets
in oil, serve as model systems for exploring very general theories about the
minimum-energy configurations of particles with arbitrary repulsive interactions
on curved surfaces. Above a critical system size we find that crystals develop
distinctive high-angle grain boundaries, or scars, not found in planar crystals. The
number of excess defects in a scar is shown to grow linearly with the dimensionless
system size. The observed slope is expected to be universal, independent of the
microscopic potential."


== Soft Matter Keywords ==

Colloid, interface, crystal defects, stress/strain on lattice


== Soft Matter Example ==