Island-to-Percolation Transition During the Room-Temperature Growth of Sputtered Nanoscale Pd Films on Hexagonal SiC (Articolo in rivista)

Type
Label
  • Island-to-Percolation Transition During the Room-Temperature Growth of Sputtered Nanoscale Pd Films on Hexagonal SiC (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ruffino F, Grimaldi MG (2010)
    Island-to-Percolation Transition During the Room-Temperature Growth of Sputtered Nanoscale Pd Films on Hexagonal SiC
    in Journal of applied physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ruffino F, Grimaldi MG (literal)
Pagina inizio
  • 074301 (literal)
Pagina fine
  • 074301 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 107 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica e Astronomia, CNR-IMM MATIS, Università di Catania, via S. Sofia 64, I-95123 Catania, Italy (literal)
Titolo
  • Island-to-Percolation Transition During the Room-Temperature Growth of Sputtered Nanoscale Pd Films on Hexagonal SiC (literal)
Abstract
  • We have studied the growth of room-temperature sputtered Pd films on 6H-SiC by using the atomic force microscopy technique. In particular, we analyzed the Pd film surface morphology as a function of the film thickness from 3 to 72 nm observing that the Pd grows initially (thickness 2–12 nm) as three-dimensional (3D) islands. Then (thickness 12–36 nm) the Pd film morphology evolves from compact 3D islands to partially coalesced wormlike structures, followed (36–60 nm) by a percolation morphology and finally to a continuous and rough film (at 72 nm). The application of the interrupted coalescence model allowed us to evaluate the critical mean islands diameter Rc = 6.6 nm for the partial coalescence process while the application of the kinetic freezing model allowed us to evaluate the room-temperature Pd surface diffusion coefficient Ds = 1.4x10-17 m2/s on 6H-SiC. Finally, the application of the Vincent’s model allowed us to evaluate the critical Pd coverage Pc=68% for the percolation transition. (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it