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Magnetotransport in the amorphous carbon films prepared from succinic anhydride

Prasad, V and Subramanyam, SV (2005) Magnetotransport in the amorphous carbon films prepared from succinic anhydride. In: Physica B: Condensed Matter, 369 (1-4). pp. 168-176.

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Abstract

In this paper, we report the low-temp. elec. cond. of amorphous carbon films prepd. from an org. precursor succinic anhydride at different pyrolysis temps. (700-980 DegC). The films prepd. at low temps. show activation behavior. The films prepd. at 900 DegC and above show metal-like behavior, with pos. temp. coeff. and a resistivity hump below about 25 K in the R-T behavior. The metal-like behavior at low temps. was suppressed by the application of a magnetic field. The magnetoconductance in the metal-like films at low and high field limits were analyzed in terms of weak localization and electron-electron interaction models. Negligible magnetoconductance was obsd. at higher temps.

Item Type: Journal Article
Additional Information: The Copyright belongs to Elsevier.
Keywords: Thin film;Amorphous carbon;Metal-insulator;Magnetoconductivity
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 22 Jan 2007
Last Modified: 19 Sep 2010 04:22
URI: http://eprints.iisc.ernet.in/id/eprint/4861

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