Nanoscale density fluctuations in swift heavy ion irradiated amorphous SiO2

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dc.contributor.authorKluth, P
dc.contributor.authorPakarinen, O. H
dc.contributor.authorDjurabekova, Flyura
dc.contributor.authorGiulian, R
dc.contributor.authorRidgway, M. C
dc.contributor.authorByrne, A. P
dc.contributor.authorNordlund, K
dc.date.accessioned2015-11-16T00:35:18Z
dc.date.available2015-11-16T00:35:18Z
dc.date.issued2011-11-23
dc.date.updated2016-02-24T10:38:12Z
dc.description.abstractWe report on the observation of nanoscale density fluctuations in 2 μm thick amorphous SiO₂ layers irradiated with 185 MeV Au ions. At high fluences, in excess of approximately 5 × 10¹² ions/cm², where the surface is completely covered by ion tracks, synchrotron small angle x-ray scattering measurements reveal the existence of a steady state of density fluctuations. In agreement with molecular dynamics simulations, this steady state is consistent with an ion track “annihilation” process, where high-density regions generated in the periphery of new tracks fill in low-density regions located at the center of existing tracks.
dc.description.sponsorshipThe authors acknowledge the Australian Research Council and the Australian Synchrotron Research Program for financial support and thank the staff at the ANU Heavy Ion facility for their continued technical assistance. O.P., F.D., and K.N. acknowledge financial support from the Academy of Finland under its Centre of Excellence program as well as the OPNA project, and grants of computer capacity from CSC.en_AU
dc.identifier.issn0021-8979en_AU
dc.identifier.urihttp://hdl.handle.net/1885/16490
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0021-8979..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 16/11/15). Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics and may be found at https://doi.org/10.1063/1.3671614
dc.sourceJournal of Applied Physics
dc.subjectKeywords: Annihilation process; Density fluctuation; Fluences; High-density regions; Ion track; Molecular dynamics simulations; Nano scale; Small angle X-ray scattering; Steady state; Swift heavy ions; Molecular dynamics; Nanotechnology; Silicon compounds
dc.titleNanoscale density fluctuations in swift heavy ion irradiated amorphous SiO2
dc.typeJournal article
local.bibliographicCitation.issue12en_AU
local.bibliographicCitation.lastpage5
local.bibliographicCitation.startpage123520en_AU
local.contributor.affiliationKluth, Patrick, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationPakarinen, Olli, University of Helsinki, Finlanden_AU
local.contributor.affiliationDjurabekova, Flyura, University of Helsinki, Finlanden_AU
local.contributor.affiliationGiulian, Raquel, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationRidgway, Mark C, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationByrne, Aidan, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Nuclear Physics, The Australian National Universityen_AU
local.contributor.affiliationNordlund, Kai , University of Helsinki, Finlanden_AU
local.contributor.authoremailpatrick.kluth@anu.edu.auen_AU
local.contributor.authoruidu4054452en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor020406en_AU
local.identifier.absfor100712en_AU
local.identifier.absfor020403en_AU
local.identifier.absseo970102en_AU
local.identifier.ariespublicationu4153526xPUB65en_AU
local.identifier.citationvolume110en_AU
local.identifier.doi10.1063/1.3671614en_AU
local.identifier.scopusID2-s2.0-84855303499
local.identifier.thomsonID000298639800034
local.identifier.uidSubmittedByu3488905en_AU
local.publisher.urlhttps://www.aip.org/en_AU
local.type.statusPublished Versionen_AU

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