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Mechanisms of surface nanostructuring of Al.sub.2./sub.O.sub.3./sub. and MgO by grazing incidence irradiation with swift heavy ions
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SYSNO ASEP 0561938 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mechanisms of surface nanostructuring of Al2O3 and MgO by grazing incidence irradiation with swift heavy ions Author(s) Karlusic, M. (HR)
Rymzhanov, R. A. (KZ)
O'Connell, J. H. (ZA)
Brockers, L. (DE)
Luketic, K.T. (HR)
Siketić, Z. (HR)
Fazinic, S. (HR)
Dubček, P. (HR)
Jakšic, M. (HR)
Provatas, G. (HR)
Medvedev, Nikita (FZU-D) ORCID, RID
Volkov, A.E. (RU)
Schleberger, M. (DE)Number of authors 13 Article number 101508 Source Title Surfaces and Interfaces. - : Elsevier - ISSN 2468-0230
Roč. 27, Dec (2021)Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords ion irradiation ; irradiation effects ; swift heavy ion ; atomic force microscopy ; Md simulation Subject RIV BH - Optics, Masers, Lasers OECD category Fluids and plasma physics (including surface physics) R&D Projects LTT17015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000711758500001 EID SCOPUS 85120357944 DOI 10.1016/j.surfin.2021.101508 Annotation We experimentally discovered that Al2O3 and MgO exhibit well-pronounced nanometric modifications on the surfaces when irradiated under grazing incidence with 23 MeV I beam, in contrast to normal incidence irradiation with the same ion beam when no damage was found. Moreover, ions in these two materials produce notably different structures: grooves surrounded with nanohillocks on MgO surfaces vs. smoother, roll-like discontinuous structures on the surfaces of Al2O3. To explain these results, detailed numerical simulations were performed. We identified that a presence of the surface inhibits recrystallization process, thereby preventing transient tracks from recovery, and thus forming observable nanopatterns. Furthermore, a difference in the viscosities in molten states in Al2O3 vs. MgO explains the differences in the created nanostructures. Our results thus provide a deeper understanding of the fundamental processes of surface nanostructuring.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.surfin.2021.101508
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