Structural, dielectric, and Mossbauer studies of multiferroic (1-x)PbFe0.5Nb0.5O3 - xPbCr0.5Nb0.5O3 solid solution ceramics obtained by usual sintering and by high-pressure synthesis

S. I. Raevskaya, S. P. Kubrin, A. V. Pushkarev, N. M. Olekhnovich, Yu V. Radyush, V. V. Titov, M. A. Malitskaya, I. N. Zakharchenko, Haydn Chen, C. C. Chou, I. P. Raevski*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In the(1-x)PbFe0.5Nb0.5O3 - xPbCr0.5Nb0.5O3 (PFN-xPCN) ceramics fabricated by a usual solid state synthesis route the content of the pyrochlore phase increases dramatically with x, exceeding 50% for x = 0.3 composition. Synthesis under high (6 GPa) pressure enabled us to obtain perovskite PFN-xPCN ceramics, though for compositions with x ≥ 0.4 an admixture of the pyrochlore phase was still present. Both the pseudocubic lattice parameter and ferroelectric phase transition temperature decrease monotonically as x grows. The composition dependence of the antiferromagnetic phase transition temperature for PFN-xPCN is very similar to that in the PFN-PbMO3 (M-Ti, Zr, Sn) solid solution systems implying the lack of magnetic exchange between Fe3+ and Cr3+ ions.

Original languageEnglish
Pages (from-to)40-49
Number of pages10
JournalFerroelectrics
Volume509
Issue number1
DOIs
StatePublished - 12 Mar 2017

Keywords

  • Mossbauer spectra
  • PFN
  • PbCrNbO
  • PbFeNbO
  • high-pressure synthesis

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