Premium
Luther‐Emery liquid in the NMR relaxation rate of carbon nanotubes
Author(s) -
Dóra Balázs,
Gulacsi Miklós,
Simon Ferenc,
Wzietek Pawel,
Kuzmany Hans
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200879606
Subject(s) - condensed matter physics , carbon nanotube , luttinger liquid , relaxation (psychology) , lattice (music) , physics , materials science , thermodynamics , nanotechnology , quantum mechanics , electron , psychology , social psychology , acoustics
We analyze a recent NMR experiments by Singer et al. [Singer et al. Phys. Rev. Lett. 95 , 236403 (2005).], which showed a deviation fromFermi‐liquid behavior in carbon nanotubes with an energy gap evident at low temperatures. A comprehensive theory for the magnetic field and temperature dependent NMR 13 C spin‐lattice relaxation is given in the framework of the Luther‐Emery and Luttinger liquids. The low temperature properties are governed by a gapped relaxation due to a spin gap (∼ 30 K), described by the Luther‐Emery liquid picture, which crosses over smoothly to the Luttinger liquid behaviour with increasing temperature. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)