References

1. 1. Bokov A.A., Ye Z.-G. Recent Progress in Relaxor Ferroelectrics with Perovskite Structure // J. Mater. Sci. 2006. V. 41. № 1. P. 31–52. https://doi.org/10.1007/s10853-005-5915-7
2. 2. Nomura S., Takabayashi H., Nakagawa T. Dielectric and Magnetic Properties of Pb(Fe1/2Ta1/2)O3 // Jpn. J. Appl. Phys. 1968. V. 7. № 6. P. 600. https://doi.org/
3. 3. Martinez R., Palai R., Huhtinen H., Liu J., Scott J.F., Katiyar R.S. Nanoscale Ordering and Multiferroic Behavior in Pb(Fe1/2Ta1/2)O3 // Phys. Rev. B. 2010. V. 82. P. 134104. https://doi.org/10.1103/PhysRevB.82.134104
4. 4. Lampis N., Sciau Ph., Lehmann A.G. Rietveld Refinements of the Paraelectric and Ferroelectric Structures of PbFe0.5Ta0.5O3 // J. Phys. Condens. Matter. 2000. V. 12. № 11. P. 2367–2378. https://doi.org/10.1088/0953-8984/12/11/303
5. 5. Lehmann A.G., Kubel F., Schmid H. The Disordered Structure of the Complex Perovskite Pb(Fe0.5Ta0.5)O3 // J. Phys. Condens. Matter. 1997. V. 9. № 39. P. 8201-8212. https://doi.org/10.1088/0953-8984/9/39/006
6. 6. Lehmann A.G., Sciau Ph. Ferroelastic Symmetry Changes in the Perovskite PbFeY0.5Ta0.5O3 // J. Phys. Condens. Matter. 1999. V. 11. № 5. P. 1235. https://doi.org/10.1088/0953-8984/11/5/011
7. 7. Raevski I.P., Molokeev M.S., Misyul S.V., Eremin E.V., Lazhevich A.V., Kubrin S.P., Sarichev D.A., Titov V.V., Chen H., Chou C.C., Raevskaya S.I., Malitskaya M.A. Studies of Ferroelectric and Magnetic Phase Transitions in Multiferroic PbFe0.5Ta0.5O3 // Ferroelectrics. 2015. V. 475. P. 52–60. https://doi.org/10.1080/00150193.2015.995009
8. 8. Shvorneva L.I., Venevtsev N. Y. Perovskites with Ferroelectric–Magnetic PropertieS // Sov. Phys. JETP. 1966. V. 22. № 4. P. 722–724.
9. 9. Kubrin S.P., Raevskaya S.I., Kuropatkina S.A., Sarychev D.A., Raevski I.P. Dielectric and Mossbauer Studies of B-Cation Order-Disorder Effect on the Properties of Pb(Fe1/2Ta1/2)O3 Relaxor Ferroelectric // Ferroelectrics. 2006. V. 340. № 1. P. 155–159. https://doi.org/10.1080/00150190802408945
10. 10. Bonny W., Bonin M., Sciau Ph., Schenk K.J., Chapuis G. Phase Transitions in Disordered Lead Iron Niobate – X-Ray and Synchrotron Radiation Diffraction Experiments // Solid State Commun. 1997. V. 102. P. 347–352. https://doi.org/10.1016/S0038-1098 (97)00022-7
11. 11. Cross L.E. Relaxor Ferroelectrics // Ferroelectrics. 1987. V. 76. P. 241–267. https://doi.org/10.1007/978-3-540-68683-5_5
12. 12. Bokov A.A., Shpak L.A., Rayevsky I.P. Diffuse Phase Transition in Pb(Fe0.5Nb0.5)O3-Based Solid Solutions // J. Phys. Chem. Solids. 1993. V. 54. P. 495–499. https://doi.org/10.1016/0022-3697 (93)90333-M
13. 13. Zhu W.Z., Kholkin A., Mantas P.Q., Baptista J.L., Preparation and Characterisation of Pb(Fe1/2Ta1/2)O3 Relaxor Ferroelectric // J. Eur. Ceram. Soc. 2000. V. 20. P. 2029–2034. https://doi.org/10.1134/1.1523518
14. 14. Raevski I.P., Eremkin V.V., Smotrakov V.G., Malitskaya M.A., Bogatina S.A., Shilkina L.A. Growth and Study of PbFe1/2Ta1/2O3 Single Crystals // Crystallogr. Rep. 2002. V. 47. P. 1076–1081. https://doi.org/10.1134/1.1523518
15. 15. Bormanis K., Burkhanov A.I., Waingolts A.I., Kalvane A. Electrical Properties of Lead Ferrotantalate Ceramics // Integr. Ferroelectr. 2009. V. 108. P. 134–139. https://doi.org/10.1080/00150193.2019.1569980
16. 16. Burns G., Dacol F.H. Glassy Polarization Behavior in Ferroelectric Compounds Pb(Mg1/3Nb2/3)O3 and Pb(Zn1/3Nb2/3)O3 // Solid State Commun. 1983. V. 48. № 10. P. 853–856. https://doi.org/10.1016/0038-1098 (83)90132-1
17. 17. Dul’kin E., Roth M., Janolin P.-E., Dkhil B. Acoustic Emission Study of Phase Transitions and Polar Nanoregions in Relaxor-based Systems: Application to the PbZn1/3Nb2/3O3 Family of Single Crystals // Phys. Rev. B. 2006. V. 73. № 1. P. 012102. https://doi.org/10.1103/PhysRevB.73.012102
18. 18. Mihailova B., Maier B., Paulmann C., Malcherek T., Ihringer J., Gospodinov M., Stosch R., Güttler B., Bismayer U. High-temperature Structural Transformations in the Relaxor Ferroelectrics PbSc0.5Ta0.5O3 and Pb0.78Ba0.22Sc0.5Ta0.5O3 // Phys. Rev. B. 2008. V. 77. P. 174106. https://doi.org/10.1103/PHYSREVB.77.174106
19. 19. Dkhil B., Gemeiner P., Al-Barakaty A., Bellaiche L., Dul’kin E., Mojaev E., Roth M. Intermediate Temperature Scale T in Lead-based Relaxor Systems // Phys. Rev. B. 2009. V. 80. P. 064103. https://doi.org/10.1103/PhysRevB.80.064103
20. 20. Roth M., Mojaev E., Dul’kin E., Gemeiner P., Dkhil B. Phase Transition at a Nanometer Scale Detected by Acoustic Emission within the Cubic Phase Pb(Zn1/3Nb2/3)O3-xPbTiO3 Relaxor Ferroelectrics // Phys. Rev. Lett. 2007. V. 98. № 26. P. 265701. https://doi.org/10.1103/PhysRevLett.98.265701
21. 21. Toulouse J. The Three Characteristic Temperatures of Relaxor Dynamics and Their Meaning // Ferroelectrics. 2008. V. 369. № 13. P. 203–213. https://doi.org/10.1080/08838150802378160
22. 22. Gorev M.V., Flerov I.N., Sciau Ph., Bondarev V.S., Geddo-Lehmann A. Heat Capacity and Thermal Expansion Studies of Relaxors // Ferroelectrics. 2004. V. 307. P. 127–136. https://doi.org/10.1080/00150190490492240
23. 23. Dul’kin E.A., Raevski I.P., Emel’yanov S.M. Acoustic Emission and Thermal Expansion of PbFe0.5Nb0.5O3 Crystals near Phase Transitions // Phys. Solid State. 1997. V. 39. P.363–364. https://doi.org/10.1080/00150190490492240
24. 24. Ronguette J., Hainеs J., Bornand V. Transition to a Cubic Phase with Symmetry-breaking Disorder in PbZr0.52Ti0.48O3 at High Pressure // Phys. Rev. B. 2002. V. 65. P. 214102-1–214102-4. https://doi.org/10.1103/PhysRevB.65.214102
25. 25. Kallaev S.N., Omarov Z.M., Bakmaev A.G., Mitarov R.G., Reznichenko L.A., Bormanis K. Thermal Properties of Multiferroic Bi1−xEuxFeO3 (х = 0–0.40) Ceramics // J. Alloys Compd. 2017. V. 695. P. 3044–3047. https://doi.org/10.1016/j.jallcom.2016.11.347
26. 26. Жузе В.П. Физические cвойства халькогенидов редкоземельных элементов. Л.: Наука, 1973. 304 c.
27. 27. Mitarov R.G., Tikhonov V.V., Vasilev L.N., Golubkov A.V., Smirnov I.A. Schottky Effect in the Pr3Te4–Pr2Te3 System // Phys. Status Solidi A. 1975. V. 30. № 2. P. 457–467. https://doi.org/10.1002/pssa.2210300204
28. 28. Nuzhnyy D., Petzelt J., Bovtun V., Kamba S., Hlinka J. Soft Mode Driven Local Ferroelectric Transition in Lead-based Relaxors // Appl. Phys. Lett. 2019. V. 114. № 18. P. 182901. https://doi.org/10.1063/1.5090468
29. 29. Smirnova E., Sotnikov A., Zaitseva N., Schmidt H., Weihnacht M. Acoustic Properties of Multiferroic PbFe1/2Ta1/2O3 // Phys. Lett. A. 2010. V. 374. № 41. P. 4256–4259. https://doi.org/10.1016/j.physleta.2010.08.039
30. 30. Isupov V.A. New Approach to Phase Transition in Relaxor Ferroelectrics // Phys. Status Solidi B. 1999. V. 213. P. 211–218. https://doi.org/10.1002/ (SICI)1521-3951(199905)213:13.0.CO;2-L
31. 31. Kolesova R., Kupriyanov M. Structural Study of PbFe0.5Nb0.5O3 Crystal in the Paraelectric Phase // Phase Transitions. 1993. V. 45. № 4. P. 271–276. https://doi.org/10.1080/01411599308213210
32. 32. Lampis N., Sciau Ph., Lehmann A.G. Rietveld Refinements of the Paraelectric and Ferroelectric Structures of PbFe0.5Nb0.5O3 // J. Phys.: Condens. Matter. 1999. V. 11. № 17. P. 3489–3501. https://doi.org/10.1088/0953-8984/12/11/303