Ion induced solid flow

Abstract

Amorphous solids can flow over very long periods of time. Solid flow can also be artificially enhanced by creating defects, as by Ion Beam Sputtering (IBS) in which collimated ions with energies in the 0.1 to 10 keV range impact a solid target, eroding its surface and inducing formation of nanometric structures. Recent experiments have challenged knowledge accumulated during the last two decades so that a basic understanding of self-organized nano-pattern formation under IBS is still lacking. We show that considering the irradiated solid to flow like a highly viscous liquids can account for the complex IBS morphological phase diagram, relegating erosion to a subsidiary role and demonstrating a controllable instance of solid flow at the nanoscale. This new perspective can allow for a full harnessing of this bottom-up route to nanostructuring.

17 pages, 5 figures

References in corpus (5)

• On the stabilization of ion sputtered surfaces
• Is keV ion induced pattern formation on Si(001) caused by metal impurities?
• Coupling of morphology to surface transport in ion-beam irradiated surfaces. I. Oblique incidence
• Diffuse-interface model for nanopatterning induced by self-sustained ion etch masking
• One-dimensional pattern of Au nanodots by ion-beam-sputtering: formation and mechanism

Cited by in corpus (16)

• Solid flow drives surface nanopatterning by ion-beam irradiation
• Stress-induced patterns in ion-irradiated Silicon: a model based on anisotropic plastic flow
• The crater function approach to ion-induced nanoscale pattern formation: Craters for flat surfaces are insufficient
• Stability analysis of a viscoelastic model for ion-irradiated silicon
• Anisotropic nanoscale wrinkling in solid state substrates
• Ion beam generated surface ripples: new insight in the underlying mechanism
• Crater functions for compound materials: a route to parameter estimation in coupled-PDE models of ion bombardment
• Morphological Transitions in Nanoscale Patterns Produced by Concurrent Ion Sputtering and Impurity Co-deposition
• Instability types at ion-assisted alloy deposition: from two-dimensional to three-dimensional nanopattern growth
• Ion-beam nanopatterning of silicon surfaces under co-deposition of non-silicide-forming impurities
• Producing nanodot arrays with improved hexagonal order by patterning surfaces before ion sputtering
• de Gennes Narrowing and the Relationship Between Structure and Dynamics in Self-Organized Ion Beam Nanopatterning
• Symmetry of surface nanopatterns induced by ion-beam sputtering: the role of anisotropic surface diffusion
• Nanoscale dynamics during self-organized ion beam patterning of Si: II. Kr${}^{+}$ Bombardment
• Nanoscale dynamics during self-organized ion beam patterning of Si: I. Ar${}^{+}$ Bombardment
• PyCraters: A Python framework for crater function analysis