Edge Vibrations of Graphane Nanoribbons

Journal Article · Tue May 15 04:00:00 EDT 2018 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783418050281· OSTI ID:22771098

Using the COMPASS force field, natural linear vibrations of graphane (graphene hydrogenated on both sides) nanoribbons are simulated. The frequency spectrum of a graphane sheet consists of three continuous intervals (low-frequency, mid-frequency, and narrow high-frequency) and two gaps between them. The construction of dispersion curves for nanoribbons with a zigzag and chair structure of the edges show that the frequencies of edge vibrations (edge phonons) can be present in the gaps of the frequency spectrum. In the first type of nanoribbons, two dispersion curves are in the low-frequency gap of the spectrum and four dispersion curves in the second gap. These curves correspond to phonons moving only along the nanoribbon edges (the mean depth of their penetration toward the nanoribbon center does not exceed 0.15 nm).

• OSTI ID: 22771098
• Journal Information: Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 5 Vol. 60; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
COMPASS DETECTOR
DISPERSIONS
GRAPHENE
HYDROGENATION
NANOSTRUCTURES
PHONONS
SIMULATION
SPECTRA