Using particle beams, a "carbon onion," a structure consisting of nested fullerene-like balls, can be converted into a diamond. Here a growing diamond can be seen inside concentric graphitic layers. The diamonds can assume sizes of up to 100 nanometers. (Image courtesy of Florian Banhart, Max Planck Institute in Stuttgart, Germany.)
This research is described in an experimental paper by Wesolowski et al. in the 6 October 1997 issue of Applied Physics Letters and in a theoretical paper by Zaiser et al. to be published in an upcoming issue of Physical Review Letters. For more information, contact Florian Banhart of the Max Planck Institute in Germany at email@example.com.
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