title: Universality of striped morphologies.
abstract: We present a method for predicting the low-temperature behavior of spherical and Ising spin models with isotropic potentials. For the spherical model the characteristic length scales of the ground states are exactly determined but the morphology is shown to be degenerate with checkerboard patterns, stripes and more complex morphologies having identical energy. For the Ising models we show that the discretization breaks the degeneracy causing striped morphologies to be energetically favored and therefore they arise universally as ground states to potentials whose Hankel transforms have nontrivial minima.
authors.affiliation: Complex Systems Group, Department of Energy and Environment, Chalmers University of Technology, SE-41296 Göteborg, Sweden. erik.edlund@chalmers.se
authors.forename: E
authors.initials: E
authors.lastname: Edlund
authors.forename: M Nilsson
authors.initials: MN
authors.lastname: Jacobi