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
| Main Authors: | S. I. Raevskaya, S. P. Kubrin, A. V. Pushkarev, N. M. Olekhnovich, Yu. V. Radyush, V. V. Titov, M. A. Malitskaya, I. N. Zakharchenko, H. Chen, C.-C. Chou, I. P. Raevski |
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| Format: | Article |
| Bahasa: | eng |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3551433 |
Daftar Isi:
- 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 D 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 Fe3C and Cr3C ions.