Kumari, Latha and Subramanyam, SV and Eto, S and Takai, K and Enoki, T (2004) Metal-Insulator transition in iodinated amorphous conducting carbon films. In: Carbon, 42 (11). pp. 2133-2137.
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Abstract
In this work, the effect of iodine incorporation on the electrical conductivity, magnetic susceptibility (\chi) and magnetoresistance (MR) of amorphous conducting carbon (a-C) films has been discussed. Variation in conductivity of a-C films depends on the sample preparation conditions and iodine concentration. Evidence of metal-insulator (M-I) transition as a function of pyrolysis temperature is observed for iodinated (a-C:I) samples. The temperature dependent magnetic susceptibility of a-C:I sample shows a Curie behavior at low temperatures. The positive magnetoresistance is observed for all the samples irrespective of the conduction regimes. This is accounted by the electron-electron interaction in the a-C:I system.
Item Type: | Journal Article |
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Publication: | Carbon |
Publisher: | Elsevier Science |
Additional Information: | Copyright for this article belongs to Elsevier Science. |
Keywords: | Carbon films;Intercalation;Pyrolysis;Transport properties |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 03 Dec 2004 |
Last Modified: | 19 Sep 2010 04:17 |
URI: | http://eprints.iisc.ac.in/id/eprint/2401 |
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