Gupta, Srashti ; Gehrke, H. G. ; Krauser, J. ; Trautmann, C. ; Severin, D. ; Bender, M. ; Rothard, H. ; Hofsäss, H. (2016)
Conducting ion tracks generated by charge-selected swift heavy ions.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 381
doi: 10.1016/j.nimb.2016.05.010
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Conducting ion tracks in tetrahedral amorphous carbon (ta-C) thin films were generated by irradiation with swift heavy ions of well-defined charge state. The conductivity of tracks and the surface topography of the films, showing characteristic hillocks at each track position, were investigated using conductive atomic force microscopy measurements. The dependence of track conductivity and hillock size on the charge state of the ions was studied using 4.6 MeV/u Pb ions of charge state 53+, 56+ and 60+ provided by GANIL, as well as 4.8 MeV/u Bi and Au ions of charge state from 50+ to 61+ and 4.2 MeV/u 238U ions in equilibrium charge state provided by UNILAC of GSI. For the charge state selection at GSI, an additional stripper-foil system was installed at the M-branch that now allows routine irradiations with ions of selected charge states. The conductivity of tracks in ta-C increases significantly when the charge state increases from 51+ to 60+. However, the conductivity of individual tracks on the same sample still shows large variations, indicating that tracks formed in ta-C are either inhomogeneous or the conductivity is limited by the interface between ion track and Si substrate.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Gupta, Srashti ; Gehrke, H. G. ; Krauser, J. ; Trautmann, C. ; Severin, D. ; Bender, M. ; Rothard, H. ; Hofsäss, H. |
| Art des Eintrags: | Bibliographie |
| Titel: | Conducting ion tracks generated by charge-selected swift heavy ions |
| Sprache: | Englisch |
| Publikationsjahr: | 15 August 2016 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Jahrgang/Volume einer Zeitschrift: | 381 |
| DOI: | 10.1016/j.nimb.2016.05.010 |
| Kurzbeschreibung (Abstract): | Conducting ion tracks in tetrahedral amorphous carbon (ta-C) thin films were generated by irradiation with swift heavy ions of well-defined charge state. The conductivity of tracks and the surface topography of the films, showing characteristic hillocks at each track position, were investigated using conductive atomic force microscopy measurements. The dependence of track conductivity and hillock size on the charge state of the ions was studied using 4.6 MeV/u Pb ions of charge state 53+, 56+ and 60+ provided by GANIL, as well as 4.8 MeV/u Bi and Au ions of charge state from 50+ to 61+ and 4.2 MeV/u 238U ions in equilibrium charge state provided by UNILAC of GSI. For the charge state selection at GSI, an additional stripper-foil system was installed at the M-branch that now allows routine irradiations with ions of selected charge states. The conductivity of tracks in ta-C increases significantly when the charge state increases from 51+ to 60+. However, the conductivity of individual tracks on the same sample still shows large variations, indicating that tracks formed in ta-C are either inhomogeneous or the conductivity is limited by the interface between ion track and Si substrate. |
| Freie Schlagworte: | Ion tracks, Diamond like carbon, Swift heavy ions |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 15 Jun 2016 07:52 |
| Letzte Änderung: | 24 Nov 2021 14:32 |
| PPN: | |
| Sponsoren: | This work was funded by BMBF under the program ‘condensed matter research at large scale facilities’. |
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