Effect of magnetic ion doping on structural, electric and relaxor properties of Pb (Fe2/3W1/3) O3 multiferroic ceramics

Autor: Bárbara Fraygola, José Antônio Eiras
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Materials Research, Vol 17, Iss 6, Pp 1594-1600 (2014)
Druh dokumentu: article
ISSN: 1516-1439
DOI: 10.1590/1516-1439.287814
Popis: Single-phase Pb(Fe2/3W1/3)O3 (PFW) multiferroic ceramics doped with magnetic ions were fabricated using a modified B-site precursor method. Dielectric response was investigated over a wide range of temperature and frequency. Doping did not modify the characteristic temperatures (T C, T N) and the order at ferroelectric phase transition, keeping the relaxor properties. However, the leakage current and resistivity of PFW have been improved with the substitutions: 1 mol% MnO2 addition caused a significant increase in the electric resistivity of PFW ceramics, around 7 orders of magnitude.
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