Chemical ordering and magnetic phase transitions in multiferroic <inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow><mtext>BiFeO</mtext></mrow><mrow><mstyle mathvariant="bold"><mn>3</mn></mstyle></mrow></msub></math></inline-formula><bold>–AFe</bold><inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mstyle mathvariant="bold"><mn>1</mn><mo stretchy="false" class="MathClass-bin">/</mo><mn>2</mn></mstyle></mrow></msub></math></inline-formula><bold>Sb</bold><inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mstyle mathvariant="bold"><mn>1</mn><mo stretchy="false" class="MathClass-bin">/</mo><mn>2</mn></mstyle></mrow></msub></math></inline-formula><bold>O</bold><inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mstyle mathvariant="bold"><mn>3</mn></mstyle></mrow></msub></math></inline-formula><bold>(A-Pb, Sr)</bold> solid solutions fabricated by a high-pressure synthesis

S. I. Raevskaya; N. M. Olekhnovich; A. V. Pushkarev; Y. V. Radyush; S. P. Kubrin; V. V. Titov; E. A. Artseva; I. P. Raevski; I. N. Zakharchenko; C-C. Chou; M. A. Malitskaya

doi:10.1142/S2010135X21600110

Journal of Advanced Dielectrics, Volume. 12, Issue 1, 2160011(2022)

Chemical ordering and magnetic phase transitions in multiferroic ${BiFeO}_{3}$ –AFe $_{1 / 2}$ Sb $_{1 / 2}$ O $_{3}$ (A-Pb, Sr) solid solutions fabricated by a high-pressure synthesis

S. I. Raevskaya¹, N. M. Olekhnovich², A. V. Pushkarev², Y. V. Radyush², S. P. Kubrin¹, V. V. Titov¹, E. A. Artseva¹, I. P. Raevski^1、*, I. N. Zakharchenko¹, C-C. Chou³, and M. A. Malitskaya¹

Author Affiliations

¹Research Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don 344090, Russia

²Scientific-Practical Materials Research Centre of NAS of Belarus, 220072, Minsk, Belarus

³Taiwan University of Science and Technology, Taipei 106, China

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Ceramic samples of BiFeO₃-based perovskite solid solutions with the highly ordered complex perovskites ${PbFe}_{1 / 2}$ ${Sb}_{1 / 2}$ O₃(PFS) and ${SrFe}_{1 / 2}$ ${Sb}_{1 / 2}$ O₃ (SFS) were obtained using high-pressure synthesis at 4–6 GPa. Mössbauer studies revealed that BiFeO₃-SFS compositions are characterized by a larger compositional inhomogeneity as compared to BiFeO₃-PFS ones. In line with this result, concentration dependence of the magnetic phase transition temperature $T_{N}$ for BiFeO₃-SFS compositions is close to the $T_{N} (x)$ dependence for BiFeO₃solid solution with disordered perovskite ${PbFe}_{1 / 2}$ ${Nb}_{1 / 2}$ O₃(PFN). In contrast to this $T_{N} (x)$ dependence for BiFeO₃-PFS compositions nicely follows the theoretical $T_{N} (x)$ dependence calculated for the case of the ordered distribution of Fe $^{3 +}$ and non-magnetic Sb $^{5 +}$ ions in the lattice (chemical ordering).Ceramic samples of BiFeO₃-based perovskite solid solutions with the highly ordered complex perovskites ${PbFe}_{1 / 2}$ ${Sb}_{1 / 2}$ O₃(PFS) and ${SrFe}_{1 / 2}$ ${Sb}_{1 / 2}$ O₃ (SFS) were obtained using high-pressure synthesis at 4–6 GPa. Mössbauer studies revealed that BiFeO₃-SFS compositions are characterized by a larger compositional inhomogeneity as compared to BiFeO₃-PFS ones. In line with this result, concentration dependence of the magnetic phase transition temperature $T_{N}$ for BiFeO₃-SFS compositions is close to the $T_{N} (x)$ dependence for BiFeO₃solid solution with disordered perovskite ${PbFe}_{1 / 2}$ ${Nb}_{1 / 2}$ O₃(PFN). In contrast to this $T_{N} (x)$ dependence for BiFeO₃-PFS compositions nicely follows the theoretical $T_{N} (x)$ dependence calculated for the case of the ordered distribution of Fe $^{3 +}$ and non-magnetic Sb $^{5 +}$ ions in the lattice (chemical ordering).

Keywords

BiFeO3 chemical ordering high-pressure synthesis magnetic phase transition Multiferroics

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S. I. Raevskaya, N. M. Olekhnovich, A. V. Pushkarev, Y. V. Radyush, S. P. Kubrin, V. V. Titov, E. A. Artseva, I. P. Raevski, I. N. Zakharchenko, C-C. Chou, M. A. Malitskaya. Chemical ordering and magnetic phase transitions in multiferroic ${BiFeO}_{3}$ –AFe $_{1 / 2}$ Sb $_{1 / 2}$ O $_{3}$ (A-Pb, Sr) solid solutions fabricated by a high-pressure synthesis[J]. Journal of Advanced Dielectrics, 2022, 12(1): 2160011

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Paper Information

Category: Research Articles

Received: Apr. 14, 2021

Accepted: Jun. 10, 2021

Published Online: Oct. 28, 2022

The Author Email: Raevski I. P. (igorraevsky@gmail.com)

DOI:10.1142/S2010135X21600110

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