One-dimensional transport in polymer nanofibers

Details One-dimensional transport in polymer nanofibers One-dimensional transport in polymer nanofibers

2004-10-08

arxiv.org/abs/cond-mat/0410195v1

Phys. Rev. Lett. 93, 196601 (2004)

Physics

Condensed Matter

Soft Condensed Matter

11 pages, 3 figures, accepted for publication in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.93.196601

We report our transport studies in quasi one-dimensional (1D) conductors - helical polyacetylene fibers doped with iodine and the data analysis for other polymer single fibers and tubes. We found that at 30 K < T < 300 K the conductance and the current-voltage characteristics follow the power law: G(T) ~ T^alpha with alpha ~ 2.2-7.2 and I(V) ~ V^betta with betta ~ 2-5.7. Both G(T) and I(V) show the features characteristic of 1D systems such as Luttinger liquid or Wigner crystal. The relationship between our results and theories for tunneling in 1D systems is discussed.

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