Growth of highly oriented deuterium crystals in silicon nanochannels.

  title={Growth of highly oriented deuterium crystals in silicon nanochannels.},
  author={Tommy Hofmann and Pankaj Kumar and M. Enderle and Dirk Wallacher},
  journal={Physical review letters},
  volume={110 6},
The structure of solid deuterium confined in 9 nm wide tubular silicon nanochannels has been studied by means of elastic neutron scattering techniques. As a result we report the formation of fcc D(2) as the stable solid phase in confinement in contrast to the hcp bulk structure. Further, a preferred alignment of D(2) nanocrystals with respect to the surrounding crystalline silicon matrix is discussed in terms of heteroepitaxial growth of solid D(2) on crystalline pore walls. 

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