6533b81ffe1ef96bd1277109
RESEARCH PRODUCT
Anomalous magneto-transport in disordered structures: classical edge-state percolation
Thomas FranoschWalter SchirmacherBenedikt FuchsFelix HöflingFelix Höflingsubject
PhysicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsGeneral Physics and AstronomyFOS: Physical sciencesState (functional analysis)ConductivityRenormalization groupEdge (geometry)Condensed Matter - Soft Condensed MatterMolecular dynamicsPercolationMesoscale and Nanoscale Physics (cond-mat.mes-hall)Soft Condensed Matter (cond-mat.soft)Statistical physicsCollective dynamicsdescription
By event-driven molecular dynamics simulations we investigate magneto-transport 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 heterogeneous environment.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-11-16 |