Multiwalled carbon nanotube: Luttinger versus fermi liquid

@article{Tarkiainen2001MultiwalledCN,
  title={Multiwalled carbon nanotube: Luttinger versus fermi liquid},
  author={Reeta Tarkiainen and Markus Ahlskog and J. S. Penttila and Leif Roschier and Pertti J. Hakonen and Mikko A. Paalanen and Edouard B. Sonin},
  journal={Physical Review B},
  year={2001},
  volume={64},
  pages={195412}
}
We have measured $\mathrm{IV}$ curves of multiwalled carbon nanotubes using end contacts. At low voltages, the tunneling conductance obeys non-Ohmic power law, which is predicted both by the Luttinger liquid and the environment-quantum-fluctuation theories. However, at higher voltages we observe a crossover to Ohm's law with a Coulomb-blockade offset, which agrees with the environment-quantum-fluctuation theory, but cannot be explained by the Luttinger-liquid theory. From the high-voltage… 

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