title: Dynamics of polymorphic nanostructures: from growth to collapse.
abstract: The deposition of preformed clusters on surfaces offers new possibilities to build complex artificial nanostructures, the shape of which depends on the cluster size. We describe routes for generating unusual polymorphic nanoislands, which constitute unique platforms for exploring instabilities. As coverage increases, the constraints accumulated in such nanostructures induce spectacular flattening collapse processes, which are not observed when the constraints are imposed by the substrate.
authors.affiliation: Laboratoire Aimé Cotton CNRS, Bât. 505, Université Paris-Sud, 91405 Orsay Cedex, France.
authors.forename: F
authors.initials: F
authors.lastname: Carlier
authors.forename: S
authors.initials: S
authors.lastname: Benrezzak
authors.forename: Ph
authors.initials: P
authors.lastname: Cahuzac
authors.forename: N
authors.initials: N
authors.lastname: Kebaïli
authors.forename: A
authors.initials: A
authors.lastname: Masson
authors.forename: A K
authors.initials: AK
authors.lastname: Srivastava
authors.forename: C
authors.initials: C
authors.lastname: Colliex
authors.forename: C
authors.initials: C
authors.lastname: Bréchignac
mesh_terms: D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties