title: Anomalous Magnetotransport in Disordered Structures: Classical Edge-State Percolation.
abstract: By event-driven molecular dynamics simulations we investigate magnetotransport in a two-dimensional model with randomly distributed scatterers close to the field-induced localization transition. This transition is generated by percolating skipping orbits along the edges of obstacle clusters. The dynamic exponents differ significantly from those of the conventional transport problem on percolating systems, thus establishing a new dynamic universality class. This difference is tentatively attributed to a weak-link scenario, which emerges naturally due to barely overlapping edge trajectories. We make predictions for the frequency-dependent conductivity and discuss implications for active colloidal circle swimmers in a hetegogeneous environment.
authors.affiliation: Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria.|Institut für Theoretische Physik, Johannes Gutenberg-Universität Mainz, Staudinger Weg 7, D-55088 Mainz, Germany.
authors.forename: Walter
authors.initials: W
authors.lastname: Schirmacher
authors.affiliation: Institut für Wissenschaft Komplexer Systeme, Medizinische Universität Wien, Spitalgasse 23, A-1090 Wien, Austria.
authors.forename: Benedikt
authors.initials: B
authors.lastname: Fuchs
authors.affiliation: Max-Planck-Institut für Intelligente Systeme, Heisenbergstraße 3, D-70569 Stuttgart, Germany, and IV. Institut für Theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Höfling
authors.affiliation: Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria.
authors.forename: Thomas
authors.initials: T
authors.lastname: Franosch