Work

Stochastic Model for Surface Erosion via Ion Sputtering: Dynamical Evolution from Ripple Morphology to Rough Morphology

Year: 1995

Type: article

Abstract: Surfaces eroded by ion sputtering are sometimes observed to develop morphologies which are either ripple (periodic) or rough (nonperiodic). We introduce a discrete stochastic model that allows us to interpret these experimental observations within a unified framework. We find that a periodic ripple morphology characterizes the initial stages of the evolution, whereas the surface displays self-affine scaling in the later time regime. Further, we argue that the stochastic continuum equation describing the surface height is a noisy version of the Kuramoto-Sivashinsky equation.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.75.4464

Authors: Rodolfo Cuerno, Hernán A. Makse, Silvina Tomassone, Stephen T. Harrington, H. Eugene Stanley

Institutions: Boston University, Northeastern University

Language: English

Topic: Ion-surface interactions and analysis

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: National Science Foundation

OpenAlex ID: W1996225983

FWCI: 8.259

Cites: 32

Cited by: 187

Related to: 10