Inhomogeneity of C13 isotope distribution in isotope engineered carbon nanotubes: Experiment and theory

V. Zólyomi, F. Simon, Á Rusznyák, R. Pfeiffer, H. Peterlik, H. Kuzmany, J. Kürti

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Vibrational modes of C13 isotope enriched single-walled carbon nanotubes are inhomogeneously broadened due to the random distribution of isotopes. We study this effect on the radial breathing mode theoretically using density-functional theory within the local-density approximation and compare the result with experiments on inner tubes in double-walled carbon nanotubes grown from C13 -enriched fullerenes. Increased inhomogeneity was achieved by growing inner tubes from a mixture of enriched and natural fullerenes, which is explained by the calculations. This shows the absence of carbon diffusion along the tube axis during inner tube growth, supporting the theory of inner tube growth by Stone-Wales transformations from interconnected fullerenes.

Original languageEnglish
Article number195419
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number19
DOIs
Publication statusPublished - May 15 2007

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Fullerenes
Carbon Nanotubes
Isotopes
Carbon nanotubes
inhomogeneity
isotopes
carbon nanotubes
tubes
fullerenes
Local density approximation
Experiments
Single-walled carbon nanotubes (SWCN)
Density functional theory
Carbon
Wales
breathing
statistical distributions
vibration mode
rocks
density functional theory

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Inhomogeneity of C13 isotope distribution in isotope engineered carbon nanotubes : Experiment and theory. / Zólyomi, V.; Simon, F.; Rusznyák, Á; Pfeiffer, R.; Peterlik, H.; Kuzmany, H.; Kürti, J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 19, 195419, 15.05.2007.

Research output: Contribution to journalArticle

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