Conductivity and magnetoresistance in polypyrrole-$PF_6$ at various doping levels

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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Abstract

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
Publication:	Synthetic Metals
Publisher:	Elsevier
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
URI:	http://eprints.iisc.ac.in/id/eprint/10378

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