Zarkadoula, E;
Duffy, DM;
Nordlund, K;
Seaton, MA;
Todorov, IT;
Weber, WJ;
Trachenko, K;
(2015)
Electronic effects in high-energy radiation damage in tungsten.
Journal of Physics: Condensed Matter
, 27
(13)
, Article 135401. 10.1088/0953-8984/27/13/135401.
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Abstract
Although the effects of the electronic excitations during high-energy radiation damage processes are not currently understood, it is shown that their role in the interaction of radiation with matter is important. We perform molecular dynamics simulations of high-energy collision cascades in bcc-tungsten using the coupled two-temperature molecular dynamics (2T-MD) model that incorporates both the effects of electronic stopping and electron-phonon interaction. We compare the combination of these effects on the induced damage with only the effect of electronic stopping, and conclude in several novel insights. In the 2T-MD model, the electron-phonon coupling results in less damage production in the molten region and in faster relaxation of the damage at short times. These two effects lead to a significantly smaller amount of the final damage at longer times.
| Type: | Article |
|---|---|
| Title: | Electronic effects in high-energy radiation damage in tungsten |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0953-8984/27/13/135401 |
| Publisher version: | http://dx.doi.org/10.1088/0953-8984/27/13/135401 |
| Language: | English |
| Additional information: | This is the Author's Accepted Manuscript (post-print) version of an article published in the Journal of Physics: Condensed Matter, 27 (13), Article 135401, doi: 10.1088/0953-8984/27/13/135401. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1468032 |
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