Tracks and voids in amorphous Ge induced by swift heavy-ion irradiation
| Autor: | Nigel Kirby, Boshra Afra, Mark C Ridgway, Leandro Araujo, Baerbel Rethfeld, Olli H. Pakarinen, O. Osmani, Flyura Djurabekova, Thomas Bierschenk, Kai Nordlund, Aidan Byrne, Marika Schleberger, Raquel Giulian, Matias Rodriguez, Nikita Medvedev, Patrick Kluth |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Yield (engineering) Semicondutores elementares Ion track General Physics and Astronomy Semicondutores amorfos Physik (inkl. Astronomie) Molecular physics Ion Amorphous solid Swift heavy ion Physics::Plasma Physics Phase (matter) Solidificação Astrophysics::Earth and Planetary Astrophysics Irradiation Efeitos de feixe iônico Porosity Germânio |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| Popis: | Ion tracks formed in amorphous Ge by swift heavy-ion irradiation have been identified with experiment and modeling to yield unambiguous evidence of tracks in an amorphous semiconductor. Their underdense core and overdense shell result from quenched-in radially outward material flow. Following a solid-to-liquid phase transformation, the volume contraction necessary to accommodate the high-density molten phase produces voids, potentially the precursors to porosity, along the ion direction. Their bow-tie shape, reproduced by simulation, results from radially inward resolidification. |
| Databáze: | OpenAIRE |
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