Luther-Emery liquid in the NMR relaxation rate of carbon nanotubes

Balázs Dóra, Miklós Gulacsi, Ferenc Simon, Pawel Wzietek, Hans Kuzmany

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2 Citations (Scopus)

Abstract

We analyze a recent NMR experiments by Singer et al. [Singer et al. Phys. Rev. Lett. 95, 236403 (2005).], which showed a deviation from Fermi-liquid behavior in carbon nanotubes with an energy gap evident at low temperatures. A comprehensive theory for the magnetic field and temperature dependent NMR 13C 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.

Original languageEnglish
Pages (from-to)2159-2163
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume245
Issue number10
DOIs
Publication statusPublished - Oct 1 2008

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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