On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites

E. Veena Gopalan, K. A. Malini, D. Sakthi Kumar, Yasuhiko Yoshida, I. A. Al-Omari, S. Saravanan, M. R. Anantharaman

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The temperature and frequency dependence of dielectric permittivity and dielectric loss of nanosized Mn1-xZnxFe2O4(for x = 0, 0.2, 0.4, 0.6, 0.8, 1) were investigated. The impact of zinc substitution on the dielectric properties of the mixed ferrite is elucidated. Strong dielectric dispersion and broad relaxation were exhibited by Mn1-xZnxFe2O4. The variation of dielectric relaxation time with temperature suggests the involvement of multiple relaxation processes. Cole-Cole plots were employed as an effective tool for studying the observed phenomenon. The activation energies were calculated from relaxation peaks and Cole-Cole plots and found to be consistent with each other and indicative of a polaron conduction.

Original languageEnglish
Article number146006
JournalJournal of Physics: Condensed Matter
Volume21
Issue number14
DOIs
Publication statusPublished - Apr 8 2009

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Ferrites
Manganese
manganese
Zinc
ferrites
Permittivity
zinc
Gene Conversion
Dielectric relaxation
Relaxation processes
Dielectric losses
plots
Dielectric properties
Relaxation time
Ferrite
Substitution reactions
Activation energy
dielectric loss
Temperature
dielectric properties

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Veena Gopalan, E., Malini, K. A., Sakthi Kumar, D., Yoshida, Y., Al-Omari, I. A., Saravanan, S., & Anantharaman, M. R. (2009). On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites. Journal of Physics: Condensed Matter, 21(14), [146006]. https://doi.org/10.1088/0953-8984/21/14/146006

On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites. / Veena Gopalan, E.; Malini, K. A.; Sakthi Kumar, D.; Yoshida, Yasuhiko; Al-Omari, I. A.; Saravanan, S.; Anantharaman, M. R.

In: Journal of Physics: Condensed Matter, Vol. 21, No. 14, 146006, 08.04.2009.

Research output: Contribution to journalArticle

Veena Gopalan, E, Malini, KA, Sakthi Kumar, D, Yoshida, Y, Al-Omari, IA, Saravanan, S & Anantharaman, MR 2009, 'On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites', Journal of Physics: Condensed Matter, vol. 21, no. 14, 146006. https://doi.org/10.1088/0953-8984/21/14/146006
Veena Gopalan, E. ; Malini, K. A. ; Sakthi Kumar, D. ; Yoshida, Yasuhiko ; Al-Omari, I. A. ; Saravanan, S. ; Anantharaman, M. R. / On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites. In: Journal of Physics: Condensed Matter. 2009 ; Vol. 21, No. 14.
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