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Tracks and voids in amorphous Ge induced by swift heavy-ion irradiation.
Ridgway, M C; Bierschenk, T; Giulian, R; Afra, B; Rodriguez, M D; Araujo, L L; Byrne, A P; Kirby, N; Pakarinen, O H; Djurabekova, F; Nordlund, K; Schleberger, M; Osmani, O; Medvedev, N; Rethfeld, B; Kluth, P.
Afiliação
  • Ridgway MC; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Bierschenk T; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Giulian R; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Afra B; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Rodriguez MD; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Araujo LL; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Byrne AP; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
  • Kirby N; Australian Synchrotron, Clayton 3168, Australia.
  • Pakarinen OH; Department of Physics and Helsinki Institute of Physics, University of Helsinki, 00014 Helsinki, Finland.
  • Djurabekova F; Department of Physics and Helsinki Institute of Physics, University of Helsinki, 00014 Helsinki, Finland.
  • Nordlund K; Department of Physics and Helsinki Institute of Physics, University of Helsinki, 00014 Helsinki, Finland.
  • Schleberger M; Fakultät für Physik, Universität Duisburg-Essen, 47057 Duisburg, Germany.
  • Osmani O; Fakultät für Physik, Universität Duisburg-Essen, 47057 Duisburg, Germany and Department of Physics and OPTIMAS Research Center, Technical University of Kaiserslautern, 67663 Kaiserslautern, Germany.
  • Medvedev N; Department of Physics and OPTIMAS Research Center, Technical University of Kaiserslautern, 67663 Kaiserslautern, Germany.
  • Rethfeld B; Department of Physics and OPTIMAS Research Center, Technical University of Kaiserslautern, 67663 Kaiserslautern, Germany.
  • Kluth P; Research School of Physics and Engineering, Australian National University, Canberra 0200, Australia.
Phys Rev Lett ; 110(24): 245502, 2013 Jun 14.
Article em En | MEDLINE | ID: mdl-25165936
ABSTRACT
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.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article