Metallic single-walled silicon nanotubes

AUTOR(ES)

Bai, Jaeil

FONTE

National Academy of Sciences

RESUMO

Atomistic computer-simulation evidences are presented for the possible existence of one-dimensional silicon nanostructures: the square, pentagonal, and hexagonal single-walled silicon nanotubes (SWSNTs). The local geometric structure of the SWSNTs differs from the local tetrahedral structure of cubic diamond silicon, although the coordination number of atoms of the SWSNTs is still fourfold. Ab initio calculations show that the SWSNTs are locally stable in vacuum and have zero band gap, suggesting that the SWSNTs are possibly metals rather than wide-gap semiconductors.

Documentos Relacionados

• Molecular mechanics applied to single-walled carbon nanotubes
• Single-walled carbon nanotubes functionalized with sodium hyaluronate enhance bone mineralization
• Single-Walled Carbon Nanotubes/Poly Vinyl Chloride Nanocomposites and its Properties
• Nonlinear Dynamic Analysis of Electrostatically Actuated Single-walled Carbon Nanotubes Using Nonlocal Elasticity
• Radial breathing mode resonance Raman cross-section analysis in single-walled carbon nanotubes