Stability and dynamics of Frenkel pairs in si.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Physical review letters
دوره 99 21 شماره
صفحات -
تاریخ انتشار 2007