El-Said, A. S. ; Wilhelm, R. A. ; Facsko, S. ; Trautmann, C. (2013)
Surface nanostructuring of LiNbO3 by high-density electronic excitations.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 315
doi: 10.1016/j.nimb.2013.03.008
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5–2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV–Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | El-Said, A. S. ; Wilhelm, R. A. ; Facsko, S. ; Trautmann, C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Surface nanostructuring of LiNbO3 by high-density electronic excitations |
| Sprache: | Englisch |
| Publikationsjahr: | 15 November 2013 |
| 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: | 315 |
| DOI: | 10.1016/j.nimb.2013.03.008 |
| Kurzbeschreibung (Abstract): | Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5–2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV–Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions. |
| Freie Schlagworte: | Ion-surface interaction, Swift heavy ions, Highly charged ions, Energy loss |
| Zusätzliche Informationen: | 25th International Conference on Atomic Collisions in Solids (ICACS-25) |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Mär 2014 13:21 |
| Letzte Änderung: | 21 Mär 2014 13:21 |
| PPN: | |
| Sponsoren: | The support by KFUPM (Project No. SB111006) and Alexander von Humboldt Foundation is greatly acknowledged. , RAW acknowledges the DFG for financial support under project number HE 6174/1-1. |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum