Dc leakage behavior and conduction mechanism in (BiFeO3)m(SrTiO3)m superlattices

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Dc leakage behavior and conduction mechanism in (BiFeO3)m(SrTiO3)m superlattices

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Title: Dc leakage behavior and conduction mechanism in (BiFeO3)m(SrTiO3)m superlattices
Author: Ranjith, R.; Prellier, Wilfrid; Cheah, Jun Wei; Wang, Junling; Wu, Tom
Copyright year: 2008
Abstract: Leakage current behavior of (BiFeO3)m(SrTiO3)m superlattice structures was studied and analyzed at different temperatures (303–473 K) in the light of various models. While bulk limited Poole–Frenkel emission was observed to dominate the leakage current in the temperature range of 303–383 K, the space charge limited conduction was observed up to 473 K. With a Poole–Frenkel emission type of conduction, the activation energy range of -0.06–0.25 eV was calculated. The physical parameters, calculated from the analysis, correlate with the intrinsic properties. Such analysis of leakage current facilitates interface engineering of heterostructures for device applications.
Subject: DRNTU::Engineering::Materials::Magnetic materials
Type: Journal Article
Series/ Journal Title: Applied physics letters
School: School of Materials Science and Engineering
Rights: © 2008 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following DOI: http://dx.doi.org/10.1063/1.2937843. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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