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 untagged Mathematical Sciences not elsewhere classified