Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
1997-06-27
Phys. Rev. Lett. 80, 2338 (1998)
Physics
Condensed Matter
Disordered Systems and Neural Networks
6 pages of RevTex, 6 postscript figures, uses epsf.sty
Scientific paper
10.1103/PhysRevLett.80.2338
A large-scale molecular dynamics simulation is performed on a glass-forming Lennard-Jones mixture to determine the nature of dynamical heterogeneities which arise in this model fragile liquid. We observe that the most mobile particles exhibit a cooperative motion in the form of string-like paths (``strings'') whose mean length and radius of gyration increase as the liquid is cooled. The length distribution of the strings is found to be similar to that expected for the equilibrium polymerization of linear polymer chains.
Donati Claudio
Douglas* Jack F.
Glotzer Sharon C.
Kob Walter
Plimpton Steven J.
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