One-dimensional transport in polymer nanofibers
A. N. Aleshin (1,2), H. J. Lee (1), Y. W. Park (1), K. Akagi (3), ((1) School of Physics, Nano Systems Institute - National Core Research, Center, Seoul National University, Seoul, Korea (2) A. F. Ioffe, Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg,
TL;DR
This study investigates electrical transport in quasi-one-dimensional polymer nanofibers, revealing power-law behaviors and characteristics indicative of 1D quantum systems like Luttinger liquids or Wigner crystals.
Contribution
It provides experimental data on conductance and current-voltage characteristics of polymer nanofibers, linking observed behaviors to theoretical models of 1D quantum systems.
Findings
Conductance follows a power law with temperature, G(T) ~ T^alpha.
Current-voltage characteristics follow a power law, I(V) ~ V^beta.
Features consistent with Luttinger liquid or Wigner crystal behavior.
Abstract
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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