Spin Gap and Luttinger Liquid Description of the NMR Relaxation in Carbon Nanotubes

Autor(en)

Balazs Dora, Miklos Gulacsi, Ferenc Simon, Hans Kuzmany

Abstrakt

Recent NMR experiments by Singer et al. [Singer , Phys. Rev. Lett. 95, 236403 (2005).] showed a deviation from Fermi-liquid behavior in carbon nanotubes with an energy gap evident at low temperatures. Here, a comprehensive theory for the magnetic field and temperature dependent NMR C-13 spin-lattice relaxation is given in the framework of the Tomonaga-Luttinger liquid. The low temperature properties are governed by a gapped relaxation due to a spin gap (similar to 30 K), which crosses over smoothly to the Luttinger liquid behavior with increasing temperature.

Organisation(en)

Dynamik Kondensierter Systeme

Externe Organisation(en)

Max-Planck-Institut für Physik komplexer Systeme, Budapest University of Technology and Economics

Journal

Physical Review Letters

Band

99

Anzahl der Seiten

4

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.99.166402

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

103009 Festkörperphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/fd9c6a3e-15e8-4c8d-895c-4eea4d07e99e