Sutar, Dayanand and Mithra, Madan and Menon, Reghu and Subramanyam, SV (2001) Conductivity and magnetoresistance in polypyrrole-$PF_6$ at various doping levels. In: Synthetic Metals, 119 (1-3). pp. 455-456.
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The temperature dependence of dc conductivity (from 1.5 to 300 K), and magnetoresistance (up to 7T) have been studied on polypyrrole samples doped with $PF^-_6(PPy - PF_6)$ at various doping levels. In this work, the metal-insulator transition (MIT) is tuned by varying the carrier density, and not by the extent of disorder. The conductivity data is analysed using different models. The positive magnetoresistance observed for all the samples shows that electron-electron interaction is dominant.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier.|
|Keywords:||polypyrrole;Transport measurement;Magnetotransport;Metal-insulator transition|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||29 Mar 2007|
|Last Modified:||19 Sep 2010 04:36|
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