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Ageing dynamics of ion bombardment induced self-organization processes.


ABSTRACT: Instabilities caused during the erosion of a surface by an ion beam can lead to the formation of self-organized patterns of nanostructures. Understanding the self-organization process requires not only the in-situ characterization of ensemble averaged properties but also probing the dynamics. This can be done with the use of coherent X-rays and analyzing the temporal correlations of the scattered intensity. Here, we show that the dynamics of a semiconductor surface nanopatterned by normal incidence ion beam sputtering are age-dependent and slow down with sputtering time. This work provides a novel insight into the erosion dynamics and opens new perspectives for the understanding of self-organization mechanisms.

SUBMITTER: Bikondoa O 

PROVIDER: S-EPMC3657716 | biostudies-other | 2013

REPOSITORIES: biostudies-other

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