Dissipative continuum model for self-organized pattern formation during ion-beam erosion | Zendy

Stefan Facsko | Zendy; T. Bobek | Zendy; Achim Stahl | Zendy; H. Kurz | Zendy; T. Dekorsy | Zendy

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Dissipative continuum model for self-organized pattern formation during ion-beam erosion

Author(s) -

Stefan Facsko,

T. Bobek,

Achim Stahl,

H. Kurz,

T. Dekorsy

Publication year - 2004

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.69.153412

Subject(s) - dissipative system , ion , pattern formation , physics , hexagonal crystal system , range (aeronautics) , ion beam , condensed matter physics , materials science , quantum mechanics , biology , chemistry , composite material , crystallography , genetics

A continuum model, based on the damped Kuramoto-Sivashinsky equation, is shown to reproduce the morphology evolution during ion sputtering quite successfully. In a very narrow range of the damping parameter $\ensuremath{\alpha},$ the alignment of the structures into hexagonal domains is obtained under normal incidence of ions with striking resemblance to the experimentally observed dot patterns. The origin of this damping factor is discussed.

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