Ragavendran, K. and Morchshakov, V. and Veluchamy, A. and Barner, K. (2008) Trap state spectroscopy in CMR manganites and spinel manganates using opto-impedance. Journal of Physics and Chemistry of Solids, 69 (1). pp. 182-186. ISSN 0022-3697

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The photo-induced AC-impedance method is used as a versatile instrumentation to study the trap state densities and the carrier relaxation times in magneto-resistive manganites and magneto-conductive manganates and thus as a probe to check the crystal quality, which is important for the performance of any device material. A comparative study using compounds of different defect densities is presented. High defect concentrations in the compounds are identified through the photoresistivity and/or the photo-induced capacitive build up.

Item Type: Article
Uncontrolled Keywords: Semiconductors; Transport properties
Subjects: Electrochemical Power Sources
Depositing User: ttbdu cecri
Date Deposited: 01 Apr 2012 10:40
Last Modified: 01 Apr 2012 10:40
URI: http://cecri.csircentral.net/id/eprint/364

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