Quasicrystalline order and a crystal-liquid state in a soft-core fluid
Andrew Archer
Alastair M. Rucklidge
Edgar Knobloch
2134/15351
https://repository.lboro.ac.uk/articles/journal_contribution/Quasicrystalline_order_and_a_crystal-liquid_state_in_a_soft-core_fluid/9386930
A two-dimensional system of soft particles interacting via a two-length-scale potential is studied.
Density functional theory and Brownian dynamics simulations reveal a fluid phase and two crystalline
phases with different lattice spacing. Of these the larger lattice spacing phase can form an exotic periodic
state with a fraction of highly mobile particles: a crystal liquid. Near the transition between this phase and
the smaller lattice spacing phase, quasicrystalline structures may be created by a competition between
linear instability at one scale and nonlinear selection of the other.
2014-07-28 10:56:04
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Mathematical Sciences not elsewhere classified