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J Phys Condens Matter. 2012 Dec 5;24(48):485003. doi: 10.1088/0953-8984/24/48/485003. Epub 2012 Oct 23.

Amorphous graphene: a realization of Zachariasen's glass.

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Department of Physics, Arizona State University, Tempe, AZ 85287-1604, USA.


Amorphous graphene is a realization of a two-dimensional Zachariasen glass as first proposed 80 years ago. Planar continuous random networks of this archetypal two-dimensional network are generated by two complementary simulation methods. In the first, a Monte Carlo bond switching algorithm is employed to systematically amorphize a crystalline graphene sheet. In the second, molecular dynamics simulations are utilized to quench from the high temperature liquid state. The two approaches lead to similar results as detailed here, through the pair distribution function and the associated diffraction pattern. Details of the structure, including ring statistics and angular distortions, are shown to be sensitive to preparation conditions, and await experimental confirmation.

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