title: Complex behaviour of spiral waves induced by an alternating electric field.
abstract: An efficient control of chemical waves is desirable in various fields of science and engineering. We present a novel method to control the motion of the spiral tip using an electric field perpendicular to the plane of wave propagation. An alternating field may lead to complex spatio-temporal patterns. Shown in the picture is an example of the destabilising effect of an alternating electric field, in which the wavefront displays fluctuating wrinkles.
authors.affiliation: Institute of Physical Chemistry, University of Würzburg, Würzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Seipel
authors.forename: M
authors.initials: M
authors.lastname: Zierhut
authors.forename: A F
authors.initials: AF
authors.lastname: Münster
mesh_terms: D002384:Catalysis; D003198:Computer Simulation; D004560:Electricity; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry; D013450:Sulfones / Q000737:chemistry
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D013450:Sulfones; C017662:polysulfone P 1700