Curvature, hybridization, and STM images of carbon nanotubes

Abstract

The curvature effects in carbon nanotubes are studied analytically as a function of chirality. The pi-orbitals are found to be significantly rehybridized in all tubes, so that they are never normal to the tubes' surface. This results in a curvature induced gap in the electronic band-structure, which turns out to be larger than previous estimates. The tilting of the pi-orbitals should be observable by atomic resolution scanning tunneling microscopy measurements.

Four pages in revtex format including four epsfig-embedded figures. The latest version in PDF format is available from http://fy.chalmers.se/~eggert/papers/hybrid.pdf

Cited by in corpus (18)

• Quantum transport in carbon nanotubes
• A systematic ab-initio study of curvature effects in carbon nanotubes
• Hyperfine interaction and electron-spin decoherence in graphene and carbon nanotube quantum dots
• Quantum Blockades and Loop Currents in Graphene with Topological Defects
• Spin-orbit interaction in chiral carbon nanotubes probed in pulsed magnetic fields
• Wide-range optical studies on various single-walled carbon nanotubes: the origin of the low-energy gap
• Dirac-Kronig-Penney model for strain-engineered graphene
• Spin-Orbit Effects in Carbon-Nanotube Double Quantum Dots
• Quantum Monte Carlo Calculations for Carbon Nanotubes
• Interband transitions in narrow-gap carbon nanotubes and graphene nanoribbons
• Curvatronics with bilayer graphene in an effective $4D$ spacetime
• Strain induced correlation gaps in carbon nanotubes
• Lattice defects and boundaries in conducting carbon nanotubes
• Hot electrons injection in carbon nanotubes under the influence of quasi-static ac-field
• High Frequency Conductivity of Hot Electrons in Carbon Nanotubes
• Electronic transport in bent carbon nanotubes
• Coupled study by TEM/EELS and STM/STS of electronic properties of C- and CNx-nanotubes
• Electronic spectra of commensurate and incommensurate DWNTs in parallel magnetic field