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

doi:10.1088/0953-8984/21/14/146006

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

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

25 Citations (SciVal)

Abstract

The temperature and frequency dependence of dielectric permittivity and dielectric loss of nanosized Mn_1-xZn_xFe₂O₄(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 Mn_1-xZn_xFe₂O₄. 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 language	English
Article number	146006
Journal	Journal of Physics Condensed Matter
Volume	21
Issue number	14
DOIs	https://doi.org/10.1088/0953-8984/21/14/146006
Publication status	Published - Apr 8 2009

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1088/0953-8984/21/14/146006

Cite this

@article{c8b87d39b2304ebeba0bd90a98b4bec4,

title = "On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites",

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.",

author = "{Veena Gopalan}, E. and Malini, {K. A.} and {Sakthi Kumar}, D. and Yasuhiko Yoshida and Al-Omari, {I. A.} and S. Saravanan and Anantharaman, {M. R.}",

note = "Publisher Copyright: {\textcopyright} 2009 IOP Publishing Ltd.",

year = "2009",

month = apr,

day = "8",

doi = "10.1088/0953-8984/21/14/146006",

language = "English",

volume = "21",

journal = "Journal of Physics: Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "14",

}

TY - JOUR

T1 - On the dielectric dispersion and absorption in nanosized manganese zinc mixed ferrites

AU - Veena Gopalan, E.

AU - Malini, K. A.

AU - Sakthi Kumar, D.

AU - Yoshida, Yasuhiko

AU - Al-Omari, I. A.

AU - Saravanan, S.

AU - Anantharaman, M. R.

PY - 2009/4/8

Y1 - 2009/4/8

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84902532671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84902532671&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/21/14/146006

DO - 10.1088/0953-8984/21/14/146006

M3 - Article

C2 - 21825353

AN - SCOPUS:84902532671

SN - 0953-8984

VL - 21

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

IS - 14

M1 - 146006

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this