Carbon nano-ribbons and their edge phonons

Well-defined carbon nano-ribbons with a honeycomb structure have been grown on a TiC (755) surface. The width between two armchair edges is ∼1.3 nm and the length is a macroscopic scale. The phonon modes and the electronic π bands of the carbon nano-ribbons were quantized, which is a characteristic...

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Veröffentlicht in:	Solid state communications 2002-07, Vol.123 (1), p.33-36
Hauptverfasser:	Tanaka, T, Tajima, A, Moriizumi, R, Hosoda, M, Ohno, R, Rokuta, E, Oshima, C, Otani, S
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Nanostructures Analytical chemistry Chemistry Condensed matter: structure, mechanical and thermal properties Electron energy loss spectroscopy Electron spectroscopy (x-ray photoelectron (XPS), Auger electron spectroscopy(AES), etc.) Epitaxy Exact sciences and technology Lattice dynamics Phonons Phonons in low-dimensional structures and small particles Physics Solid surfaces and solid-solid interfaces Spectrometric and optical methods Surface and interface dynamics and vibrations Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Zusammenfassung:	Well-defined carbon nano-ribbons with a honeycomb structure have been grown on a TiC (755) surface. The width between two armchair edges is ∼1.3 nm and the length is a macroscopic scale. The phonon modes and the electronic π bands of the carbon nano-ribbons were quantized, which is a characteristic feature of the ribbons with nano-scale widths. Additionally, we have detected the transverse optical edge phonons, of which the vibrational amplitudes are localized at the armchair edge sites.
ISSN:	0038-1098 1879-2766
DOI:	10.1016/S0038-1098(02)00186-2