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dc.contributor.author
Terekhin, Pavel
dc.contributor.author
Rymzhanov, R. A.
dc.contributor.author
Gorbunov, S. A.
dc.contributor.author
Medvedev, N. A.
dc.contributor.author
Volkov, A. E.
dc.date.available
2018-04-23T17:00:33Z
dc.date.issued
2015-07
dc.identifier.citation
Terekhin, Pavel; Rymzhanov, R. A.; Gorbunov, S. A.; Medvedev, N. A.; Volkov, A. E.; Effect of valence holes on swift heavy ion track formation in Al2O3; Elsevier; Beam Interactions with Materials and Atoms; 354; 7-2015; 200-204
dc.identifier.issn
0168-583X
dc.identifier.uri
http://hdl.handle.net/11336/43030
dc.description.abstract
This paper focuses on effects of electrons and valence holes on structure modifications in swift heavy ion (SHI) tracks in dielectrics. To investigate this problem a multiscale model is constructed which consists of (a) Monte Carlo modeling of a SHI penetration and secondary electron cascading; (b) molecular-kinetic approach for low-energy electrons spatial redistribution after finishing of ionization cascades; (c) molecular dynamics modeling of lattice excitation due to its coupling with the relaxing electron ensemble and subsequent atomic dynamics on picoseconds timescales. The model is applied to 167 MeV Xe ion irradiation of solid Al2O3. We found that lattice heating by excited electrons does not exceed ∼200 K, which is not sufficient to form an ion track observed in experiments. Structure transformations appear in the numerical simulations only when the excess energy accumulated in valence holes is taken into account.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Complex Dielectric Function
dc.subject
Dynamic Structure Factor
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Molecular Dynamics
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Monte-Carlo
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Swift Heavy Ion
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Effect of valence holes on swift heavy ion track formation in Al2O3
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-05T20:43:44Z
dc.journal.volume
354
dc.journal.pagination
200-204
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Terekhin, Pavel. National Research Centre ‘Kurchatov Institute’; Rusia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Rymzhanov, R. A.. Joint Institute for Nuclear Research; Rusia
dc.description.fil
Fil: Gorbunov, S. A.. Russian Academy of Sciences; Rusia
dc.description.fil
Fil: Medvedev, N. A.. Deutsches Elektronen-Synchrotron; Alemania
dc.description.fil
Fil: Volkov, A. E.. National Research Centre ‘Kurchatov Institute’; Rusia. Joint Institute for Nuclear Research; Rusia. Russian Academy of Sciences; Rusia
dc.journal.title
Beam Interactions with Materials and Atoms
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0168583X15000919
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.nimb.2015.01.069


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