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13C NMR chemical shift of single-wall carbon nanotubes

AutorLatil, Sylvain; Henrard, Luc; Goze-Bac, Christophe; Bernier, Patrick; Rubio, Angel
Fecha de publicación2001
EditorAmerican Physical Society
CitaciónPhysical Review Letters 86(14): 3160- 3163 (2001)
ResumenWe compute the magnetic shielding tensor within the London approximation and estimate the Knight shift of single-wall carbon nanotubes. Our results indicate that high resolution 13C NMR should be able to separate the metallic and insulator character of the nanotubes since a 11 ppm splitting is predicted from the respective resonances. As a model for disorder, bending, and defects in these structures, we investigate the magnetic response of nanotubes with finite size. We get a small line broadening coming from an intrinsic length dependent resonance effect. The nanotube packing is also studied and leads to a 20 ppm broadening which disappears under experimental high-resolution conditions.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevLett.86.3160
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