Infinite family of bc8 -like metastable phases in silicon

  title={Infinite family of 
-like metastable phases in silicon},
  author={Vladimir E. Dmitrienko and Viacheslav A. Chizhikov},
  journal={Physical Review B},
We show that new silicon crystalline phases, observed in the experiment with the laser-induced microexplosions in silicon crystals [Rapp et al., Nat. Commun. 6, 7555 (2015)], are all superstructures of a disordered high-symmetry phase with $Ia\overline{3}d$ cubic space group, as well as known for many years phases $bc8$ (Si-III) and $r8$ (Si-XII). The physics of this phenomenon is rather nontrivial: The $bc8$-like superstructures appear as regularly ordered patterns of switchable atomic strings… 
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