Highly resistive fast-sintered BiFeO₃ ceramics

ABSTRACT

This contribution presents an alternative synthesis route to produce highly resistive BiFeO₃ multiferroic samples. The use of a fast sintering process followed by quenching to room temperature resulted in ceramic bulks with a resistance higher than 10¹² Ohm.m at room temperature. In addition, anomalies found in the dielectric and resistivity characterization indicated the presence of magnetoelectric coupling in the synthesized BiFeO₃ sample.

KEYWORDS:

• Multiferroic magnetoelectric
• dc resistivity
• dielectric
• bismuth ferrite

Acknowledgments

This research is supported by CAPES (PROCAD 88881.068509/2014–01), and CNPq (prot. 446565/2014–8) funding agencies. GS Dias also thanks CAPES and Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paraná (prot. 40.812) for fellowship. The authors would like to thank the Brazilian Synchrotron Light Laboratory for HR-XPD.