期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 22, 期 17, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/22/17/175301
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The electronic transport properties of ultra-low doped conducting polymer nanowires exhibit characteristics of a pinned one-dimensional Wigner crystal (1D WC) due to the long range electron-electron interaction at low temperature (<30 K). These wires also show characteristics of three-dimensional variable range hopping (3D VRH) at higher temperature. Here we report a resistivity study of these nanowires as a function of the bias around and above 30 K, to show that a crossover takes place from 3D VRH to power law behavior as the bias voltage or current is increased from a low to a relatively high value. The experimental results for this temperature range show several similarities to the theoretically predicted properties of disordered Luttinger liquid, though at lower temperature the characteristics of the 1D WC are obtained for these nanowires.
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