Study of Impedance Spectroscopy of Ferroelectric (Pb Sr)TiO₃ Glass Ceramic System with Addition of La₂O₃

Table 2

Resistive, capacitive contribution for different model equivalent circuit elements for the glass ceramic sample 4PL7B850S along with the relaxation time at different temperatures calculated from complex modulus plots.

Temp (°C)	𝐶1(pF)	𝑅1(ohm)	𝜏1(Sec)	𝐶2(pF)	𝑅2 (ohm)	𝜏2 (Sec)	𝐶3 (pF)	𝑅3 (ohm)	𝜏3 (Sec)	𝐶4 (pF)	𝑅4 (ohm)	𝜏4 (Sec)
50	—	—	—	—	—	—	272	1.48×10^3	4.03×10^−7	5.82×10^3	3.42×10^8	1.99
100	—	—	—	—	—	—	248	2.44×10^3	6.04×10^−7	10.6×10^3	2.89×10^8	3.00
150	—	—	—	251	5.42×10^3	1.36×10^−6	6.12×10^3	2.49×10^6	1.53×10^−2	8.74×10^3	5.20×10^8	4.54
200	—	—	—	232	8.79×10^3	2.04×10^−6	6.12×10^3	1.11×10^6	6.01×10^−3	8.74×10^3	1.99×10^7	0.17
250	—	—	—	—	—	—	201	1.02×10^4	2.04×10^−6	2.04×10^3	9.85×10^5	2×10^−3
275	—	—	—	—	—	—	194	1.05×10^4	2.04×10^−6	2.91×10^3	3.07×10^5	8.94×10^−4