Electronic band structure and energetic stability of two types of and oriented silicon nanowires in beta-Sn phase with the surface terminated by hydrogen atoms were studied using density functional theory. It was found that beta-Sn nanowires are metastable with zero band gap against to alpha-diamond nanowires. The relative energy of the studied wires tends to the energy of the bulk silicon crystal in beta-Sn phase.
@article{arxiv.0906.2440,
title = {Metallic beta-phase silicon nanowires: structure and electronic properties},
author = {Pavel B. Sorokin and Pavel V. Avramov and Viktor A. Demin and Leonid A. Chernozatonskii},
journal= {arXiv preprint arXiv:0906.2440},
year = {2015}
}