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Title: Ion-irradiation-induced stresses and swelling in amorphous Ge thin films

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2]
  1. I. Physikalisches Institut, Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany)
  2. Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)

Mechanical stresses and morphology during growth and ion bombardment of amorphous Ge thin films are investigated by a combination of in situ stress measurements and molecular dynamics computer simulations. Strong compressive stresses are generated during irradiation that subsequently lead to severe swelling. The simulations indicate that interstitial-mediated viscous flow in combination with well-localized vacancy defects are the main ingredients responsible for the observed phenomena.

OSTI ID:
20666297
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 71, Issue 13; Other Information: DOI: 10.1103/PhysRevB.71.134102; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
Country of Publication:
United States
Language:
English

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