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arxiv: cond-mat/0410195 · v1 · submitted 2004-10-08 · ❄️ cond-mat.soft

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
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Korea (2) A. F. Ioffe Physical-Technical Institute Russian Academy of Sciences St. Petersburg Russia (3)Institute of Materials Science Tsukuba Research Center for Interdisciplinary Materials Science University of Tsukuba Tsukuba Ibaraki Japan)
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classification ❄️ cond-mat.soft
keywords alphabettafibersone-dimensionalpolymersystemstransportanalysis
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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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