Non-ohmic conduction and electrical switching under pressure of the charge transfer complexo-tolidine-iodine

Naik, Hemamalini and Subramanyam, SV (1986) Non-ohmic conduction and electrical switching under pressure of the charge transfer complexo-tolidine-iodine. In: Pramana, 26 (1). pp. 61-66.

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Abstract

The current voltage characteristics ofo-tolidine-iodine, with stoichiometry 1:1 grown from benzene, have been studied under high pressures upto 6 GPa atT=300 K andT=77 K. The characteristics show a pronounced deviation from ohmicity beyond a certain current for all pressures studied. At room temperature, beyond a threshold field the system switches from a low conductingOFF state to a high conductingON state with σON/σOFF ∼ 103. TheOFF state can be restored by the application of an a.c. pulse of low frequency. The temperature dependence of the two states studied indicates that theOFF state is semiconducting while theON state, beyond a certain applied pressure is metallic. The characteristics atT=77 K do not show any switching.

Item Type:	Journal Article
Publication:	Pramana
Publisher:	Indian Academy of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Keywords:	Non-ohmic conduction;electrical switching;high pressure;charge transfer complex.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	22 Jan 2010 06:07
Last Modified:	19 Sep 2010 05:43
URI:	http://eprints.iisc.ac.in/id/eprint/22816

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