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Observation and modeling of interrupted pattern coarsening: surface nanostructuring by ion erosion

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URI: https://hdl.handle.net/10016/6880
ISSN: 0031-9007 (Print)
ISSN: 1079-7114 (Online)
DOI: https://www.doi.org/10.1103/PhysRevLett.104.026101
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observation_cuerno_prl_2010_ps.pdf (670.21 KB)
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2010-01-15
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The American Physical Society
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Abstract
We report the experimental observation of interrupted coarsening for surface self-organized nanostructuring by ion erosion. Analysis of the target surface by atomic force microscopy allows us to describe quantitatively this intriguing type of pattern dynamics through a continuum equation put forward in different contexts across a wide range of length scales. The ensuing predictions can thus be consistently extended to other experimental conditions in our system. Our results illustrate the occurrence of nonequilibrium systems in which pattern formation, coarsening, and kinetic roughening appear, each of these behaviors being associated with its own spatiotemporal range.
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4 pages, 3 figures.-- PACS nrs.: 68.35.Ct, 05.45.-a, 79.20.Rf, 81.16.Rf.
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[PACS] Interface structure and roughness, [PACS] Nonlinear dynamics and chaos, [PACS] Atomic, molecular, and ion beam impact and interactions with surfaces, [PACS] Micro- and nanoscale pattern formation
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Physical Review Letters 104, 026101 (2010)
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