title: Enhanced NMR relaxation of Tomonaga-Luttinger liquids and the magnitude of the carbon hyperfine coupling in single-wall carbon nanotubes.
abstract: Recent transport measurements [Churchill et al. Nature Phys. 5, 321 (2009)] found a surprisingly large, 2-3 orders of magnitude larger than usual (13)C hyperfine coupling (HFC) in (13)C enriched single-wall carbon nanotubes. We formulate the theory of the nuclear relaxation time in the framework of the Tomonaga-Luttinger liquid theory to enable the determination of the HFC from recent data by Ihara et al. [Europhys. Lett. 90, 17,004 (2010)]. Though we find that 1/T(1) is orders of magnitude enhanced with respect to a Fermi-liquid behavior, the HFC has its usual, small value. Then, we reexamine the theoretical description used to extract the HFC from transport experiments and show that similar features could be obtained with HFC-independent system parameters.
authors: Budapest University of Technology and Economics, Institute of Physics and Condensed Matter Research Group of the Hungarian Academy of Sciences, H-1521 Budapest, Hungary.
authors: A
authors: A
authors: Kiss
authors: A
authors: A
authors: Pályi
authors: Y
authors: Y
authors: Ihara
authors: P
authors: P
authors: Wzietek
authors: P
authors: P
authors: Simon
authors: H
authors: H
authors: Alloul
authors: V
authors: V
authors: Zólyomi
authors: J
authors: J
authors: Koltai
authors: J
authors: J
authors: Kürti
authors: B
authors: B
authors: Dóra
authors: F
authors: F
authors: Simon
mesh_terms: D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008956:Models, Chemical; D037742:Nanotubes, Carbon / Q000737:chemistry*; D045663:Quantum Dots; D012997:Solvents / Q000737:chemistry*; D013696:Temperature
chemical_list: D037742:Nanotubes, Carbon; D012997:Solvents