Grain Boundary Scars on Spherical Crystals
Soft Condensed Matter
2007-05-23 v3 Materials Science
Abstract
We present an experimental system suitable for producing spherical crystals and for observing the distribution of lattice defects (disclinations and dislocations) on a significant fraction (50%) of the sphere. The introduction of fluorescently labeled particles enables us to determine the location and orientation of grain boundary scars. We find that the total number of scars and the number of excess dislocations per scar agree with theoretical predictions and that the geometrical centers of the scars are roughly positioned at the vertices of an icosahedron.
Keywords
Cite
@article{arxiv.cond-mat/0506741,
title = {Grain Boundary Scars on Spherical Crystals},
author = {Thomas Einert and Peter Lipowsky and Jorg Schilling and Mark J. Bowick and Andreas Bausch},
journal= {arXiv preprint arXiv:cond-mat/0506741},
year = {2007}
}
Comments
12 pages, 4 Figs, pdf format (typo in title fixed). Revised for greater clarity