Perovskite structure and low frequency relaxor- like- dielectric response of (Sr,Ce)TiO3 solid solution
Source abstract
Abstract
Abstract Phase composition, structure stability, cations valance state, and relaxor-like-dielectric behavior of Sr (1–3/2 x ) Ce x TiO 3 (SCT, x = 0.3, 0.4) solid solution were investigated systematically. The Sr (1–3/2 x ) Ce x TiO 3 samples appear to be single phase within the detection limits of the technique, whereas the solid solution exhibits the higher angle doublet and triplet peak splitting associated with (200) and (321). X-ray photoelectron spectroscopy (XPS) analysis showed that the Ce substitution induces change in the cations valance state upon oxygen vacancies formation. The system exhibits features of low-frequency dependent relaxor-like-dielectric behavior rather than sharp frequency-independent anomalies. Besides this, two kind of relaxations were detected in the temperature range ≥ 350 °C. According to the electric modulus and ac conductivity analysis, the relaxor-like-dielectric behavior results from the long-range conduction associated with ionized vacancies and mixed state of Ti 3+/4+ and Ce 3+/4+ cations.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dielectric properties of ceramics · Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Microwave and infrared dielectric properties of Sr1−3x/2CexTiO3 (x = 0.154–0.400) incipient ferroelectrics at cryogenic temperatures10.1088/0022-3727/42/7/075411 ↗
2. Giant permittivity and low dielectric loss of SrTiO3 ceramics sintered in nitrogen atmosphere10.1016/j.jeurceramsoc.2014.01.015 ↗
3. SrTiO3: an intrinsic quantum paraelectric below 4 K10.1103/PhysRevB.19.3593 ↗
4. Effect of Pr substitution on structural and dielectric properties of SrTiO3
5. First-principles calculations of carrier-doping effects in SrTiO310.1103/PhysRevB.68.174107 ↗
6. Ferroelectricity at room temperature in Pr-doped SrTiO310.1063/1.1903100 ↗
7. Giant LO-TO splittings in perovskite ferroelectrics10.1103/PhysRevLett.72.3618 ↗
8. Sr1-xCaxTiO3: an XY quantum ferroelectric with transition to randomness10.1103/PhysRevLett.52.2289 ↗
9. High-temperature relaxor ferroelectric behavior in Pr-doped SrTiO310.1103/PhysRevB.76.224109 ↗
10. Dielectric and ferroelectric properties in (Sr,Ni,Na)TiO3 solid solutions
11. Critical concentrations in Ba-doped incipient ferroelectric SrTiO310.1134/1.1129941 ↗
12. Enhancement of tetragonality and role of strontium vacancies in heterovalent doped SrTiO310.1063/1.3549181 ↗
13. Oxygen-vacancy-related dielectric relaxations in SrTiO3 at high temperatures10.1063/1.4794349 ↗
14. Dielectric relaxor and ferroelectric relaxor: Bi-doped paraelectric SrTiO310.1063/1.1428799 ↗
15. Dielectric and conduction behavior of La-doped SrTiO3 with suppressed quantum-paraelectric background10.1063/1.1435409 ↗
16. Dielectric properties of Mn doped SrTiO310.1088/0953-8984/20/9/095221 ↗
17. Synthesis strategy, phase-chemical structure and microwave dielectric properties of paraelectric Sr(1–3x/2)CexTiO3 ceramics10.1016/j.jallcom.2016.11.107 ↗
18. Lattice dynamics and dielectric response of Mg-doped SrTiO3 ceramics in a wide frequency range10.1063/1.1849822 ↗
19. Dielectric relaxation in SrTiO3–SrMg1/3Nb2/3O3 and SrTiO3–SrSc1/2Ta1/2O3 solid solutions10.1134/1.1521453 ↗
20. Structure and microwave dielectric behavior of A‐site‐doped Sr(1−1.5x)CexTiO3 ceramics system10.1111/jace.14341 ↗
21. Phase-microstructure evolution and microwave dielectric characteristic of (1−x)(Sr0.5Ce0.5)TiO3+δ−xNdAlO3 solid solution10.1016/j.jeurceramsoc.2017.03.046 ↗
22. Tuning the thermoelectric properties of A-site deficient SrTiO3 ceramics by vacancies and carrier concentration10.1039/C6CP05523K ↗
23. Crystal structure of Sr0.4Ce0.4TiO3 ceramics10.1021/cm9018698 ↗
24. Structure of compounds in the Sr(1−1.5x)CexTiO3 homologous series10.1021/cm703659f ↗
25. Computer simulation studies of strontium titanate10.1111/j.1151-2916.1995.tb08818.x ↗
26. Internal oxidation of Ce3+-BaTiO3 solid solutions
27. Improving microwave dielectric properties of temperature-compensated Mg(1.04–1.5y)CeyTiO3-based ceramics with high quality factor10.1016/j.ceramint.2016.11.111 ↗
28. Electronic and chemical properties of nanostructured cerium dioxide doped with praseodymium10.1021/jp045828c ↗
29. Phase transition associated with the variation of oxygen vacancy/ion distribution in the oxide‐ion conductor La2MO2- xWxO910.1002/pssa.200622498 ↗
30. Incipient ferroelectricity and conductivity relaxations in Dy2Ti2O710.1016/j.jallcom.2016.04.222 ↗
31. Investigation on the structural, dielectric and impedance analysis of manganese substituted cobalt ferrite i.e., Co1−xMnxFe2O4 (0.0 ≤ x ≤ 0.4)10.1039/C5RA20621A ↗