title: Quasicrystalline order and a crystal-liquid state in a soft-core fluid.
abstract: 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.
authors.affiliation: Department of Mathematical Sciences, Loughborough University, Loughborough LE11 3TU, United Kingdom.
authors.forename: A J
authors.initials: AJ
authors.lastname: Archer
authors.forename: A M
authors.initials: AM
authors.lastname: Rucklidge
authors.forename: E
authors.initials: E
authors.lastname: Knobloch