Abstract
Extensive experiments and calculation have shown that interstitials in p-Si diffuse athermally, leading to the conclusion that vacancy-interstitial pairs, or Frenkel pairs (FPs), either rapidly recombine or dissociate, even at cryogenic temperatures. More recent experiments, however, suggest that FPs persist to 150 K. Here we report first-principles calculations of FP properties and resolve the apparent conflict between experiments by showing that athermal interstitial diffusion is suppressed in proximal FPs due to vacancy-interstitial interactions.
Original language | English |
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Article number | 215503 |
Journal | Physical Review Letters |
Volume | 99 |
Issue number | 21 |
DOIs | |
State | Published - Nov 20 2007 |
ASJC Scopus subject areas
- Physics and Astronomy (all)