title: Travelling waves in two-dimensional smectic-C domains.
abstract: Continued irradiation of smectic-C-like domains of photosensitive Langmuir monolayers from azobenzene derivatives induces the nucleation and propagation of orientational travelling waves as observed with Brewster angle microscopy (BAM). BAM image analysis has allowed to identify different dynamical behaviors involving the generation and propagation of such waves. A model based on the coupling between an orientational and a composition field proposes a scenario for dynamic self-assembly that accounts for most of the observed phenomena, and allows to pinpoint the relevance of boundary defects in wave-emitting structures.-1.
authors.affiliation: Departament de Química Física, Universitat de Barcelona, Martí i Franqués 1, 08028, Barcelona, Catalonia, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Claret
authors.forename: J
authors.initials: J
authors.lastname: Crusats
authors.forename: R
authors.initials: R
authors.lastname: Albalat
authors.forename: J
authors.initials: J
authors.lastname: Ignés-Mullol
authors.forename: H
authors.initials: H
authors.lastname: Martínez-Seara
authors.forename: R
authors.initials: R
authors.lastname: Reigada
authors.forename: F
authors.initials: F
authors.lastname: Sagués
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry*; D008051:Lipid Bilayers / Q000737:chemistry*; D008853:Microscopy / Q000379:methods; D008962:Models, Theoretical; D049329:Nanostructures / Q000737:chemistry*; D010777:Photochemistry; D011827:Radiation; D013499:Surface Properties
chemical_list: D001391:Azo Compounds; D001672:Biocompatible Materials; D008051:Lipid Bilayers; C009850:azobenzene