REFERENCES
1. Levin, I.; Krayzman, V.; Woicik, J. C. Local-structure origins of the sustained Curie temperature in (Ba,Ca)TiO3 ferroelectrics. Appl. Phys. Lett. 2013, 102, 162906.
2. Fu, D.; Itoh, M.; Koshihara, S. Y.; Kosugi, T.; Tsuneyuki, S. Anomalous phase diagram of ferroelectric (Ba,Ca)TiO3 single crystals with giant electromechanical response. Phys. Rev. Lett. 2008, 100, 227601.
3. Hsiang, H.; Yang, Y.; Huang, C.; Yang, K. Dielectric properties of BaTiO3 and Ba0.95Ca0.05TiO3 sintered in a reducing atmosphere. Ceram. Int. 2023, 49, 28751-7.
4. Yoon, S.; Kang, S.; Kwon, S.; Hur, K. Resistance degradation behavior of Ca-doped BaTiO3. J. Mater. Res. 2010, 25, 2135-42.[DOI:10.1557/JMR.2010.0278.
5. Huang, X.; Zhang, L.; Wang, P.; et al. Excellent permittivity-temperature stability and reliability performance of ultra-thin Ba0.97Ca0.03TiO3 -based MLCCs. J. Asian. Ceram. Soc. 2023, 11, 146-58.
6. Sakabe, Y.; Wada, N.; Hiramatsu, T.; Tonogaki, T. Dielectric properties of fine-grained BaTiO3 ceramics doped with CaO. Jpn. J. Appl. Phys. 2002, 41, 6922-5.
7. Sakabe, Y.; Takagi, H. Nonreducible mechanism of {(Ba1- xCax)O}mTiO2 (m >1) ceramics. Jpn. J. Appl. Phys. 2002, 41, 6461-5.
8. Zhang, L.; Thakur, O. P.; Feteira, A.; et al. Comment on the use of calcium as a dopant in X8R BaTiO3-based ceramics. Applied. Physics. Letters. 2007, 90, 142914.
9. Lee, S. J.; Park, I. J.; Han, Y. H. Relaxation behavior of oxygen vacancy complexes in Ba(Ti1-xCax)O3-x. Mater. Chem. Phys. 2010, 121, 161-4.
10. Johnson, K. M. Variation of dielectric constant with voltage in ferroelectrics and its application to parametric devices. J. Appl. Phys. 1962, 33, 2826-31.
11. Hennings, D.; Schnell, A.; Simon, G. Diffuse ferroelectric phase transitions in Ba(Ti1-yZry)O3 ceramics. J. Am. Ceram. Soc. 1982, 65, 539-44.
12. Yoon, S.; Kim, M.; Kim, D. Influence of tetragonality (c/a) on dielectric nonlinearity and direct current (dc) bias characteristics of (1-x)BaTiO3-xBi0.5Na0.5TiO3 ceramics. J. Appl. Phys. 2017, 122, 154103.
13. Wen, H.; Wang, X.; Chen, R.; Li, L. Modeling of dielectric behaviors of multilayer ceramic capacitors under a direct current bias field. J. Am. Ceram. Soc. 2006, 89, 550-6.
14. Zhang, W.; Jiang, Y.; Xiao, M.; et al. High DC-bias stability and reliability in BaTiO3-based multilayer ceramic capacitors: the role of the core-shell structure and the electrode. ACS. Appl. Mater. Interfaces. 2024, 16, 1158-69.
15. Zhu, C.; Cai, Z.; Guo, L.; Li, L.; Wang, X. Grain size engineered high-performance nanograined BaTiO3 -based ceramics: experimental and numerical prediction. J. Am. Ceram. Soc. 2021, 104, 273-83.
16. Yuan, Q.; Yao, F.; Cheng, S.; et al. Bioinspired hierarchically structured all-inorganic nanocomposites with significantly improved capacitive performance. Adv. Funct. Mater. 2020, 30, 2000191.
17. Yang, L.; Kong, X.; Cheng, Z.; Zhang, S. Ultra-high energy storage performance with mitigated polarization saturation in lead-free relaxors. J. Mater. Chem. A. 2019, 7, 8573-80.
18. Zhu, M.; Li, S.; Zhang, H.; et al. Diffused phase transition boosted dye degradation with Ba (ZrxTi1-x)O3 solid solutions through piezoelectric effect. Nano. Energy. 2021, 89, 106474.
19. Ravel, B.; Newville, M. Athena, artemis, hephaestus: data analysis for X-ray absorption spectroscopy using IFEFFIT. J. Synchrotron. Radiat. 2005, 12, 537-41.
20. Kong, L. B.; Li, S.; Zhang, T. S.; et al. Electrically tunable dielectric materials and strategies to improve their performances. Prog. Mater. Sci. 2010, 55, 840-93.
21. Krayzman, V.; Levin, I.; Woicik, J. C.; Bridges, F.; Nelson, E. J.; Sinclair, D. C. Ca K-edge X-ray absorption fine structure in BaTiO3-CaTiO3 solid solutions. J. Appl. Phys. 2013, 113, 044106.
22. Yang, Y.; Hao, H.; Zhang, L.; et al. Structure, electrical and dielectric properties of Ca substituted BaTiO3 ceramics. Ceram. Int. 2018, 44, 11109-15.
23. Hao, X. A review on the dielectric materials for high energy-storage application. J. Adv. Dielect. 2013, 03, 1330001.
24. He, Z.; Cao, M.; Tao, Y.; et al. Anomalous dielectric nonlinearity in niobium and aluminum Co-doped SrTiO3 ceramics with giant permittivity and low dielectric loss. J. Phys. Chem. C. 2019, 123, 18142-9.
25. Randall, C. A.; Fan, Z.; Reaney, I.; Chen, L.; Trolier-mckinstry, S. Antiferroelectrics: history, fundamentals, crystal chemistry, crystal structures, size effects, and applications. J. Am. Ceram. Soc. 2021, 104, 3775-810.
26. Zhang, L.; Ben, L.; Thakur, O. P.; et al. Ferroelectric aging and recoverable electrostrain in BaTi0.98Ca0.02O2.98 ceramics. J. Am. Ceram. Soc. 2008, 91, 3101-4.
27. Dobal, P. S.; Dixit, A.; Katiyar, R. S.; Yu, Z.; Guo, R.; Bhalla, A. S. Micro-Raman scattering and dielectric investigations of phase transition behavior in the BaTiO3-BaZrO3 system. J. Appl. Phys. 2001, 89, 8085-91.
28. Perry, C. H.; Hall, D. B. Temperature dependence of the raman spectrum of BaTiO3. Phys. Rev. Lett. 1965, 15, 700-2.
29. Zheng, H.; Csete de Györgyfalva, G. D. C.; Quimby, R.; et al. Raman spectroscopy of B-site order-disorder in CaTiO3-based microwave ceramics. J. Eur. Ceram. Soc. 2003, 23, 2653-9.
30. Siny, I.; Tao, R.; Katiyar, R.; Guo, R.; Bhalla, A. Raman spectroscopy of Mg-Ta order-disorder in BaMg13Ta23O3. J. Phys. Chem. Solids. 1998, 59, 181-95.
31. Bersuker, I. B. Pseudo-Jahn-teller effect-a two-state paradigm in formation, deformation, and transformation of molecular systems and solids. Chem. Rev. 2013, 113, 1351-90.
32. Bersuker, I. B. Pseudo Jahn-Teller origin of perovskite multiferroics, magnetic-ferroelectric crossover, and magnetoelectric effects: the d0-d10 problem. Phys. Rev. Lett. 2012, 108, 137202.
33. Asokan, K.; Jan, J. C.; Chiou, J. W.; et al. Electronic structures of Ba1-xCaxTiO3 studied by X-ray absorption spectroscopy and theoretical calculation. J. Phys. Condens. Matter. 2001, 13, 11087-95.
34. Li, C.; Hong, J. S.; Huang, Y. H.; et al. Pinched P-E hysteresis loops in Ba4Sm2Fe0.5Ti3Nb6.5O30 ceramic with tungsten bronze structure. Appl. Phys. Lett. 2019, 115, 082901.
35. Takenaka, H.; Grinberg, I.; Liu, S.; Rappe, A. M. Slush-like polar structures in single-crystal relaxors. Nature 2017, 546, 391-5.
36. Zhang, M.; Lan, S.; Yang, B. B.; et al. Ultrahigh energy storage in high-entropy ceramic capacitors with polymorphic relaxor phase. Science 2024, 384, 185-9.
37. Wei, X.; Yao, X. Nonlinear dielectric properties of barium strontium titanate ceramics. Mater. Sci. Eng. B. 2003, 99, 74-8.
38. Dunbar, T. D.; Warren, W. L.; Tuttle, B. A.; Randall, C. A.; Tsur, Y. Electron paramagnetic resonance investigations of lanthanide-doped barium titanate: dopant site occupancy. J. Phys. Chem. B. 2004, 108, 908-17.
39. Kolodiazhnyi, T.; Petric, A. Analysis of point defects in polycrystalline BaTiO3 by electron paramagnetic resonance. J. Phys. Chem. Solids. 2003, 64, 953-60.
40. Ward, R. E.; Freeman, C. L.; Dean, J. S.; Sinclair, D. C.; Harding, J. H. Using metadynamics to obtain the free energy landscape for cation diffusion in functional ceramics: dopant distribution control in rare earth-doped BaTiO3. Adv. Funct. Mater. 2020, 30, 1905077.
41. Erhart, P.; Albe, K. Modeling the electrical conductivity in BaTiO3 on the basis of first-principles calculations. J. Appl. Phys. 2008, 104, 044315.
42. Ren, X. Large electric-field-induced strain in ferroelectric crystals by point-defect-mediated reversible domain switching. Nat. Mater. 2004, 3, 91-4.
