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Please use this identifier to cite or link to this item: http://purl.org/purl/4397

Title: Mechanism of ac conduction in nanostructured manganese zinc mixed ferrites
Authors: Anantharaman, M R
Veena Gopalan, E
Malini, K A
Sagar, S
Sakthi Kumar, D
Yasuhiko, Yoshida
Al-Omari, I A
Issue Date: 31-Jul-2009
Publisher: IOP Publishing LTD
Abstract: Mn1−xZnxFe2O4 nanoparticles (x = 0 to 1) were synthesized by the wet chemical co-precipitation technique. X-ray diffraction and transmission electron microscopy and high resolution transmission electron microscopy were effectively utilized to investigate the different structural parameters. The ac conductivity of nanosized Mn1−xZnxFe2O4 were investigated as a function of frequency, temperature and composition. The frequency dependence of ac conductivity is analysed by the power law σ(ω)ac = Bωn which is typical for charge transport by hopping or tunnelling processes. The temperature dependence of frequency exponent n was investigated to understand the conduction mechanism in different compositions. The conduction mechanisms are mainly based on polaron hopping conduction
Description: J. Phys. D: Appl. Phys. 42 (2009) 165005 (8pp)
URI: http://dyuthi.cusat.ac.in/purl/4397
Appears in Collections:Dr. M R Anantharaman

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