title: Spontaneous nanoripple formation on metallic templates.
abstract: Nanoripple structures spontaneously formed at room temperature during chemical and electrochemical deposition of metals, semiconductors, and alloys on gold and copper templates, patterned with nanocavities, have been studied by atomic force microscopy (AFM) and scanning tunneling microscopy (STM). Annealing the templates at approximately equal to 373 K also results in ripple formation. Both experimental results and modeling, including anisotropic surface diffusion, demonstrate that nanocavity size in the template determines the ripple wavelength and amplitude, prior to a final stage of coarsening. Therefore, an ordered array of "nanodefects" introduced in the substrate is able to guide the self-organization of these nanofeatures during their growth, creating the possibility for nanofabrication of parallel interconnections with adjustable periodicity. Ripples are robust nanostructures that can in turn be used as templates for the preparation of hybrid nanostructured surfaces with specific physical properties.
authors.affiliation: Instituto de Investigaciones Fisicoquimicas Teoricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Sucursal 4 Casilla de Correo 16, La Plata, Argentina.
authors.forename: Paula Cecilia
authors.initials: PC
authors.lastname: dos Santos Claro
authors.forename: Marcos Federico
authors.initials: MF
authors.lastname: Castez
authors.forename: Patricia Laura
authors.initials: PL
authors.lastname: Schilardi
authors.forename: Noelia Beatriz
authors.initials: NB
authors.lastname: Luque
authors.forename: Ezequiel Pedro Marcos
authors.initials: EP
authors.lastname: Leiva
authors.forename: Roberto Carlos
authors.initials: RC
authors.lastname: Salvarezza
mesh_terms: D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D016252:Microscopy, Scanning Tunneling; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D013499:Surface Properties