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Compositionally modulated ripples during composite film growth: Three-dimensional pattern formation at the nanoscale (CROSBI ID 213650)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Krause, Matthias ; Buljan, Maja ; Muecklich, Arndt ; Moeller, Wolfhard ; Fritzsche, Monica ; Facsko, Stefan ; Heller, Rene ; Zschornak, Matthias ; Wintz, Sebastian ; Endrino, Jose Luis et al. Compositionally modulated ripples during composite film growth: Three-dimensional pattern formation at the nanoscale // Physical review. B, Condensed matter and materials physics, 89 (2014), 085418-1-085418-9. doi: 10.1103/PhysRevB.89.085418

Podaci o odgovornosti

Krause, Matthias ; Buljan, Maja ; Muecklich, Arndt ; Moeller, Wolfhard ; Fritzsche, Monica ; Facsko, Stefan ; Heller, Rene ; Zschornak, Matthias ; Wintz, Sebastian ; Endrino, Jose Luis ; Baehtz, Carsten ; Shalimov, Artem ; Gemming, Sibylle ; Abrasonis, Gintautas

engleski

Compositionally modulated ripples during composite film growth: Three-dimensional pattern formation at the nanoscale

Three-dimensional, ion-induced nanoscale pattern formation in the growth mode is studied for a bicomponent thin film. C:Ni films were grown by dual ion beam cosputtering applying an assisting oblique-incidence low-energy Ar + ion beam. Their microstructure was determined by scanning electron, atomic force, and transmission electron microscopy, as well as by grazing-incidence small-angle x-ray scattering. The role of ion-induced collisional effects was investigated by binary collision computer simulations. The formation of compositionally modulated ripples on the C:Ni film surface is demonstrated. They consist of metal-enriched topographic crests and carbon-enriched valleys. Since the surface is constantly covered by incoming species, this pattern is transferred into the bulk as a periodic array of Ni 3 C nanoparticles or of Ni-enriched regions in a carbon matrix. Lateral ripple propagation is shown to be one of the crucial phenomena for the film morphology. The essential experimental features are reproduced by the computer simulations. The results reveal the importance of ion-induced preferential displacements as the driving factor for a surface instability, which gives rise to the observed pattern formation.

ripples; C: Ni; self-assembly; GISAXS

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Podaci o izdanju

89

2014.

085418-1-085418-9

objavljeno

1098-0121

10.1103/PhysRevB.89.085418

Povezanost rada

Fizika

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