Roorda, Sjoerd ; Codsi, Stéphanie ; Lacroix, Amélie ; Long, Gabrielle G. ; Zhang, Fan ; Weigand, Steven J. ; Trautmann, Christina (2022)
Density changes in amorphous silicon induced by swift heavy ions.
In: Physical Review B, 106 (14)
doi: 10.1103/PhysRevB.106.144101
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Pure and gold-doped amorphous silicon membranes were irradiated with swift heavy ions (75 MeV Ag or 1.1 GeV Au ions) and studied using small-angle x-ray scattering. The samples that were irradiated with 1.1 GeV Au ions produced a scattering pattern consistent with core-shell-type ion tracks of 2.0 +/- 0.1 nm (core) and 7.0 +/- 0.3 nm (total) radius irrespective of gold doping, consistent with radii previously observed [9]. The density in the core is nearly 4% different from that of the surrounding material. The entire track (core + shell) is slightly less dense than the surrounding material, yielding an expansion or hammering constant A of 0.036 +/- 0.003 nm2 per ion track, consistent with the macroscopic "hammering" deformation. No tracks were found in samples irradiated with 75 MeV Ag ions, and no signature specific to the gold impurity doping could be observed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Roorda, Sjoerd ; Codsi, Stéphanie ; Lacroix, Amélie ; Long, Gabrielle G. ; Zhang, Fan ; Weigand, Steven J. ; Trautmann, Christina |
| Art des Eintrags: | Bibliographie |
| Titel: | Density changes in amorphous silicon induced by swift heavy ions |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Oktober 2022 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 106 |
| (Heft-)Nummer: | 14 |
| DOI: | 10.1103/PhysRevB.106.144101 |
| Kurzbeschreibung (Abstract): | Pure and gold-doped amorphous silicon membranes were irradiated with swift heavy ions (75 MeV Ag or 1.1 GeV Au ions) and studied using small-angle x-ray scattering. The samples that were irradiated with 1.1 GeV Au ions produced a scattering pattern consistent with core-shell-type ion tracks of 2.0 +/- 0.1 nm (core) and 7.0 +/- 0.3 nm (total) radius irrespective of gold doping, consistent with radii previously observed [9]. The density in the core is nearly 4% different from that of the surrounding material. The entire track (core + shell) is slightly less dense than the surrounding material, yielding an expansion or hammering constant A of 0.036 +/- 0.003 nm2 per ion track, consistent with the macroscopic "hammering" deformation. No tracks were found in samples irradiated with 75 MeV Ag ions, and no signature specific to the gold impurity doping could be observed. |
| Zusätzliche Informationen: | Artikel-ID: 144101 |
| 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: | 26 Feb 2024 08:20 |
| Letzte Änderung: | 26 Feb 2024 13:31 |
| PPN: | 515816841 |
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