Quasicrystalline Phase with Eighteen-Fold Diffraction Symmetry in Molecular Dynamics Simulations

Using molecular dynamics simulations, we investigate two-dimensional systems, which are composed of one type of particle, with mutual interactions of Lennard-Jones-Gauss potentials. Under certain conditions, the model system tends to organize itself into quasiperiodic lattices with a certain rotational symmetry. Diffraction patterns with eighteen-fold symmetry are observed.