One-dimensional transport in polymer nanofibers

被引:137
作者
Aleshin, AN [1 ]
Lee, HJ
Park, YW
Akagi, K
机构
[1] Seoul Natl Univ, Sch Phys, Seoul 151747, South Korea
[2] Seoul Natl Univ, Nano Syst Inst, Natl Core Res Ctr, Seoul 151747, South Korea
[3] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[4] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan
[5] Univ Tsukuba, Tsukuba Res Ctr Interdisciplinary Mat Sci, Tsukuba, Ibaraki 3058573, Japan
关键词
D O I
10.1103/PhysRevLett.93.196601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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)proportional toT(alpha) with alphasimilar to2.2-7.2 and I(V)proportional toV(beta) with betasimilar to2-5.7. Both G(T) andI(V) show the features characteristic of 1D systems such as a Luttinger liquid or Wigner crystal. The relationship between our results and theories for tunneling in 1D systems is discussed.
引用
收藏
页码:196601 / 1
页数:4
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