Luttinger Parameter g for Metallic Carbon Nanotubes and Related Systems
Abstract
The random phase approximation (RPA) theory is used to derive the Luttinger parameter g for metallic carbon nanotubes. The results are consistent with the Tomonaga-Luttinger models. All metallic carbon nanotubes, regardless if they are armchair tubes, zigzag tubes, or chiral tubes, should have the same Luttinger parameter g. However, a (10,10) carbon peapod should have a smaller g value than a (10,10) carbon nanotube. Changing the Fermi level by applying a gate voltage has only a second order effect on the g value. RPA theory is a valid approach to calculate plasmon energy in carbon nanotube systems, regardless if the ground state is a Luttinger liquid or Fermi liquid. (This paper was published in PRB 66, 193405 (2002). However, Eqs. (6), (9), and (19) were misprinted there.)
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Cite
@article{arxiv.cond-mat/0303253,
title = {Luttinger Parameter g for Metallic Carbon Nanotubes and Related Systems},
author = {William Que},
journal= {arXiv preprint arXiv:cond-mat/0303253},
year = {2009}
}
Comments
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