Maxwell--Wagner relaxation and magnetodielectric properties of [Bi.sub.0.5][La.sub.0.5]Mn[O.sub.3] ceramics

The complex permittivity [epsilon] = [epsilon]' - i[epsilon]" of manganite bismuth-lanthanum [Bi.sub.0.5][La.sub.0.5]Mn[O.sub.3] ceramics has been measured at temperature T = 78 K in the frequency range f = 200-[10.sup.5] Hz and in the magnetic induction range B = 0-5 T. Dielectric relaxat...

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Bibliographic Details
Published in:Physics of the solid state 2016-08, Vol.58 (8), p.1549
Main Authors: Turik, A.V, Pavlenko, A.V, Reznichenko, L.A
Format: Article
Language:English
Subjects:
Analysis
Ceramics
Dielectric materials
Grain boundaries
Magnetic fields
Magnetization
Online Access:Get full text
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Summary:The complex permittivity [epsilon] = [epsilon]' - i[epsilon]" of manganite bismuth-lanthanum [Bi.sub.0.5][La.sub.0.5]Mn[O.sub.3] ceramics has been measured at temperature T = 78 K in the frequency range f = 200-[10.sup.5] Hz and in the magnetic induction range B = 0-5 T. Dielectric relaxation and the pronounced magnetodielectric effect have been detected. The explanation based on the superposition of Maxwell--Wagner relaxation and the magnetoresistance effect has been proposed.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783416080291