Size-Sensitive Young's modulus of Kinked Silicon Nanowires

Abstract

We perform both classical molecular dynamics simulations and beam model calculations to investigate the Young's modulus of kinked silicon nanowires (KSiNWs). The Young's modulus is found to be highly sensitive to the arm length of the kink and is essentially inversely proportional to the arm length. The mechanism underlying the size dependence is found to be the interplay between the kink angle potential and the arm length potential, where we obtain an analytic relationship between the Young's modulus and the arm length of the KSiNW. Our results provide insight into the application of this novel building block in nanomechanical devices.

Nanotechnology, accepted (2013)

References in corpus (5)

• The strain energy and Young's Moduli of single-wall Carbon nanotubules calculated from the electronic energy-band theory
• Raman and Infra-red properties and layer dependence of the phonon dispersions in multi-layered graphene
• Chiral symmetry analysis and rigid rotational invariance for the lattice dynamics of single-wall carbon nanotubes
• A comparative study of two molecular mechanics models based on harmonic potentials
• A lattice dynamical treatment for the total potential energy of single-walled carbon nanotubes and its applications: relaxed equilibrium structure, elastic properties, and vibrational modes of ultra-narrow tubes