Enhanced NMR Relaxation of Tomonaga-Luttinger Liquids and the Magnitude of the Carbon Hyperfine Coupling in Single-Wall Carbon Nanotubes

Autor(en)

Annamaria Kiss, A. Palyi, Yoshihiko Ihara, Pawel Wzietek, P. Simon, Henri Alloul, Viktor Zolyomi, János Koltai, Jenö Kürti, Balázs Dóra, Ferenc Simon

Abstrakt

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.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Budapest University of Technology and Economics, Eötvös Loránd University Budapest, Université Paris XI - Paris-Sud, Centre National De La Recherche Scientifique (CNRS), Lancaster University

Journal

Physical Review Letters

Band

107

Anzahl der Seiten

5

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.107.187204

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/cd2d4865-93e2-4aac-8a73-d546ae04f41c