Mechanical properties of nanosheets and nanotubes investigated using a new geometry independent volume definition
arXiv:1303.4619 · doi:10.1088/0953-8984/25/15/155302
Abstract
Cross-sectional area and volume become difficult to define as material dimensions approach the atomic scale. This limits the transferability of macroscopic concepts such as Young's modulus. We propose a new volume definition where the enclosed nanosheet or nanotube average electron density matches that of the parent layered bulk material. We calculate the Young's moduli for various nanosheets (including graphene, BN and MoS2) and nanotubes. Further implications of this new volume definition such as a Fermi level dependent Young's modulus and out-of-plane Poisson's ratio are shown.
References in corpus (5)
Cited by in corpus (5)
- Mechanical Properties of Atomically Thin Boron Nitride and the Role of Interlayer Interactions
- Elastic Bending Modulus of Single-Layer Molybdenum Disulphide (MoS2): Finite Thickness Effect
- Electrodynamic models of 2D materials: can we match thin film and single sheet approaches?
- Spectroscopic investigations of phonons in epitaxial graphene
- Uniaxial Compression of Suspended Single and Multilayer graphenes