Impedance, electric modulus, dielectric spectroscopy, and equivalent-circuit fitting
Pressed powder pellet of 1 for impedance measurements · Pellet
Pressed powder pellet between 13 mm brass electrodes; measurements over 300-360 K; SI method states 100 Hz to 3 MHz; main-text fitting used 200 Hz to 1 MHz with ZView and an R1/R2 plus CPE1/CPE2 equivalent circuit.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Average CPE1-alpha used in reduced-parameter SI fit | CPE1-alpha = 0.941 | — | — | SI Table Exact Reported | SI p.S8 · Table S3 caption · Table S3 |
| Average CPE2-alpha used in reduced-parameter SI fit | CPE2-alpha = 0.899 | — | — | SI Table Exact Reported | SI p.S8 · Table S3 caption · Table S3 |
| Activation energy from relaxation time | Ea = 0.41 eV | — | — | Text Exact Reported | main p.3 / article p.36 · Electric modulus/relaxation discussion · Fig. 5b |
| SI bulk activation energy from Table S2 conductivity values | Ea = 0.448 eV | — | — | Caption Exact Reported | SI p.S8 · Supporting figures · Fig. S6 |
| SI bulk activation energy from Table S4 conductivity values | Ea = 0.438 eV | — | — | Caption Exact Reported | SI p.S10 · Supporting figures · Figure S7 |
| Activation energy from sigma_dc Arrhenius fitMarked as a best value within this paper | Ea = 0.36 eV | — | — | Text Exact Reported | main p.3 / article p.36 · Impedance results · Fig. 5c |
| Main-text equivalent-circuit fitting frequency range | 200 Hz to 1 MHz | — | — | Text Exact Reported | main p.3 / article p.36 · Electric modulus/relaxation discussion · Fig. 4 |
| SI impedance measurement frequency range | 100 Hz to 3 MHz | — | — | Text Exact Reported | 1.4. Physical Measurements |
| Impedance pellet diameter | 13 mm | — | — | Text Exact Reported | main p.2 / article p.35 · Impedance measurements · Fig. 4 |
| Impedance pellet thickness | 0.332 mm | — | — | Text Exact Reported | main p.2 / article p.35 · Impedance measurements · Fig. 4 |
| Nyquist plot shape | Semicircular arcs were obtained from 300 to 360 K | — | — | Text Qualitative | main p.2 / article p.35 · Impedance measurements · Fig. 4 |
| Bulk conductivity at 300 K from impedance fitMarked as a best value within this paper | sigma300K = 4.57 x 10^-8 S/cm | — | — | Text Exact Reported | main p.3 / article p.36 · Impedance results · Fig. 5c |
| Table S1 CPE1-A at 300 K | CPE1-A = 1.20E-10 at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 305 K | CPE1-A = 1.23E-10 at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 310 K | CPE1-A = 1.27E-10 at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 315 K | CPE1-A = 1.30E-10 at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 320 K | CPE1-A = 1.32E-10 at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 325 K | CPE1-A = 1.41E-10 at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 330 K | CPE1-A = 1.47E-10 at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 335 K | CPE1-A = 1.58E-10 at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 340 K | CPE1-A = 1.73E-10 at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 345 K | CPE1-A = 1.91E-10 at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 350 K | CPE1-A = 2.08E-10 at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 355 K | CPE1-A = 2.30E-10 at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-A at 360 K | CPE1-A = 2.60E-10 at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 300 K | CPE1-alpha = 0.947 at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 305 K | CPE1-alpha = 0.950 at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 310 K | CPE1-alpha = 0.950 at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 315 K | CPE1-alpha = 0.953 at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 320 K | CPE1-alpha = 0.955 at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 325 K | CPE1-alpha = 0.951 at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 330 K | CPE1-alpha = 0.950 at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 335 K | CPE1-alpha = 0.946 at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 340 K | CPE1-alpha = 0.940 at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 345 K | CPE1-alpha = 0.932 at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 350 K | CPE1-alpha = 0.927 at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 355 K | CPE1-alpha = 0.920 at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE1-alpha at 360 K | CPE1-alpha = 0.911 at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 300 K | CPE2-A = 1.24E-10 at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 305 K | CPE2-A = 1.32E-10 at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 310 K | CPE2-A = 1.39E-10 at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 315 K | CPE2-A = 1.47E-10 at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 320 K | CPE2-A = 1.56E-10 at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 325 K | CPE2-A = 1.58E-10 at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 330 K | CPE2-A = 1.65E-10 at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 335 K | CPE2-A = 1.70E-10 at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 340 K | CPE2-A = 1.73E-10 at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 345 K | CPE2-A = 1.75E-10 at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 350 K | CPE2-A = 1.80E-10 at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 355 K | CPE2-A = 1.82E-10 at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-A at 360 K | CPE2-A = 1.82E-10 at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 300 K | CPE2-alpha = 0.917 at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 305 K | CPE2-alpha = 0.911 at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 310 K | CPE2-alpha = 0.907 at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 315 K | CPE2-alpha = 0.902 at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 320 K | CPE2-alpha = 0.897 at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 325 K | CPE2-alpha = 0.897 at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 330 K | CPE2-alpha = 0.895 at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 335 K | CPE2-alpha = 0.893 at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 340 K | CPE2-alpha = 0.893 at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 345 K | CPE2-alpha = 0.894 at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 350 K | CPE2-alpha = 0.893 at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 355 K | CPE2-alpha = 0.894 at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 CPE2-alpha at 360 K | CPE2-alpha = 0.896 at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 300 K | R1 = 547330 ohm at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 305 K | R1 = 423790 ohm at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 310 K | R1 = 331650 ohm at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 315 K | R1 = 258210 ohm at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 320 K | R1 = 200360 ohm at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 325 K | R1 = 158160 ohm at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 330 K | R1 = 121370 ohm at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 335 K | R1 = 93921 ohm at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 340 K | R1 = 73092 ohm at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 345 K | R1 = 58355 ohm at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 350 K | R1 = 46106 ohm at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 355 K | R1 = 38436 ohm at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R1 at 360 K | R1 = 33032 ohm at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 300 K | R2 = 2.55E+08 ohm at 300 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 305 K | R2 = 2.84E+08 ohm at 305 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 310 K | R2 = 2.82E+08 ohm at 310 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 315 K | R2 = 3.28E+08 ohm at 315 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 320 K | R2 = 4.51E+08 ohm at 320 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 325 K | R2 = 3.29E+08 ohm at 325 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 330 K | R2 = 3.00E+08 ohm at 330 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 335 K | R2 = 3.07E+08 ohm at 335 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 340 K | R2 = 2.52E+08 ohm at 340 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 345 K | R2 = 2.25E+08 ohm at 345 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 350 K | R2 = 1.96E+08 ohm at 350 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 355 K | R2 = 1.72E+08 ohm at 355 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S1 R2 at 360 K | R2 = 1.30E+08 ohm at 360 K | — | — | SI Table Exact Reported | SI p.S6 · Table S1 · Table S1 |
| Table S2 bulk dielectric constant epsilon1 at 300 K | epsilon1' = 33.8 at 300 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 305 K | epsilon1' = 34.7 at 305 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 310 K | epsilon1' = 35.8 at 310 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 315 K | epsilon1' = 36.7 at 315 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 320 K | epsilon1' = 37.2 at 320 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 325 K | epsilon1' = 39.8 at 325 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 330 K | epsilon1' = 41.4 at 330 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 335 K | epsilon1' = 44.5 at 335 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 340 K | epsilon1' = 48.8 at 340 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 345 K | epsilon1' = 53.8 at 345 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 350 K | epsilon1' = 58.6 at 350 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 355 K | epsilon1' = 64.8 at 355 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk dielectric constant epsilon1 at 360 K | epsilon1' = 73.3 at 360 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 300 K | epsilon2' = 35.0 at 300 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 305 K | epsilon2' = 37.2 at 305 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 310 K | epsilon2' = 39.2 at 310 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 315 K | epsilon2' = 41.4 at 315 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 320 K | epsilon2' = 44.0 at 320 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 325 K | epsilon2' = 44.5 at 325 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 330 K | epsilon2' = 46.5 at 330 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 335 K | epsilon2' = 47.9 at 335 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 340 K | epsilon2' = 48.8 at 340 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 345 K | epsilon2' = 49.3 at 345 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 350 K | epsilon2' = 50.7 at 350 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 355 K | epsilon2' = 51.3 at 355 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface dielectric constant epsilon2 at 360 K | epsilon2' = 51.3 at 360 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 300 KMarked as a best value within this paper | sigma1 = 4.56E-08 S/cm at 300 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 305 K | sigma1 = 5.89E-08 S/cm at 305 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 310 K | sigma1 = 7.53E-08 S/cm at 310 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 315 K | sigma1 = 9.67E-08 S/cm at 315 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 320 K | sigma1 = 1.25E-07 S/cm at 320 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 325 K | sigma1 = 1.58E-07 S/cm at 325 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 330 K | sigma1 = 2.06E-07 S/cm at 330 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 335 K | sigma1 = 2.66E-07 S/cm at 335 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 340 K | sigma1 = 3.42E-07 S/cm at 340 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 345 K | sigma1 = 4.28E-07 S/cm at 345 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 350 K | sigma1 = 5.41E-07 S/cm at 350 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 355 K | sigma1 = 6.49E-07 S/cm at 355 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 bulk conductivity sigma1 at 360 K | sigma1 = 7.56E-07 S/cm at 360 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 300 K | sigma2 = 9.79E-11 S/cm at 300 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 305 K | sigma2 = 8.79E-11 S/cm at 305 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 310 K | sigma2 = 8.85E-11 S/cm at 310 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 315 K | sigma2 = 7.61E-11 S/cm at 315 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 320 K | sigma2 = 5.53E-11 S/cm at 320 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 325 K | sigma2 = 7.59E-11 S/cm at 325 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 330 K | sigma2 = 8.32E-11 S/cm at 330 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 335 K | sigma2 = 8.13E-11 S/cm at 335 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 340 K | sigma2 = 9.90E-11 S/cm at 340 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 345 K | sigma2 = 1.11E-10 S/cm at 345 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 350 K | sigma2 = 1.27E-10 S/cm at 350 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 355 K | sigma2 = 1.45E-10 S/cm at 355 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S2 interface conductivity sigma2 at 360 K | sigma2 = 1.92E-10 S/cm at 360 K | — | — | SI Table Exact Reported | SI p.S7 · Table S2 · Table S2 |
| Table S3 constrained-fit CPE1-A at 300 K | CPE1-A = 1.51E-10 at 300 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 305 K | CPE1-A = 1.53E-10 at 305 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 310 K | CPE1-A = 1.54E-10 at 310 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 315 K | CPE1-A = 1.55E-10 at 315 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 320 K | CPE1-A = 1.56E-10 at 320 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 325 K | CPE1-A = 1.59E-10 at 325 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 330 K | CPE1-A = 1.60E-10 at 330 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 335 K | CPE1-A = 1.60E-10 at 335 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 340 K | CPE1-A = 1.61E-10 at 340 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 345 K | CPE1-A = 1.61E-10 at 345 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 350 K | CPE1-A = 1.61E-10 at 350 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 355 K | CPE1-A = 1.61E-10 at 355 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE1-A at 360 K | CPE1-A = 1.63E-10 at 360 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 300 K | CPE2-A = 1.43E-10 at 300 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 305 K | CPE2-A = 1.46E-10 at 305 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 310 K | CPE2-A = 1.48E-10 at 310 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 315 K | CPE2-A = 1.51E-10 at 315 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 320 K | CPE2-A = 1.54E-10 at 320 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 325 K | CPE2-A = 1.56E-10 at 325 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 330 K | CPE2-A = 1.59E-10 at 330 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 335 K | CPE2-A = 1.62E-10 at 335 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 340 K | CPE2-A = 1.65E-10 at 340 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 345 K | CPE2-A = 1.68E-10 at 345 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 350 K | CPE2-A = 1.71E-10 at 350 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 355 K | CPE2-A = 1.73E-10 at 355 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit CPE2-A at 360 K | CPE2-A = 1.76E-10 at 360 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 300 K | R1 = 511230 ohm at 300 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 305 K | R1 = 406700 ohm at 305 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 310 K | R1 = 325130 ohm at 310 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 315 K | R1 = 263050 ohm at 315 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 320 K | R1 = 213340 ohm at 320 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 325 K | R1 = 166920 ohm at 325 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 330 K | R1 = 130880 ohm at 330 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 335 K | R1 = 102100 ohm at 335 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 340 K | R1 = 78192 ohm at 340 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 345 K | R1 = 60933 ohm at 345 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 350 K | R1 = 48076 ohm at 350 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 355 K | R1 = 39301 ohm at 355 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R1 at 360 K | R1 = 32352 ohm at 360 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 300 K | R2 = 5.38E+08 ohm at 300 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 305 K | R2 = 5.01E+08 ohm at 305 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 310 K | R2 = 3.99E+08 ohm at 310 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 315 K | R2 = 3.91E+08 ohm at 315 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 320 K | R2 = 4.36E+08 ohm at 320 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 325 K | R2 = 3.09E+08 ohm at 325 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 330 K | R2 = 2.56E+08 ohm at 330 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 335 K | R2 = 2.44E+08 ohm at 335 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 340 K | R2 = 2.06E+08 ohm at 340 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 345 K | R2 = 1.88E+08 ohm at 345 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 350 K | R2 = 1.63E+08 ohm at 350 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 355 K | R2 = 1.46E+08 ohm at 355 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S3 constrained-fit R2 at 360 K | R2 = 1.18E+08 ohm at 360 K | — | — | SI Table Exact Reported | SI p.S8-S9 · Table S3 · Table S3 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 300 K | epsilon1' = 42.6 at 300 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 305 K | epsilon1' = 43.1 at 305 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 310 K | epsilon1' = 43.4 at 310 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 315 K | epsilon1' = 43.7 at 315 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 320 K | epsilon1' = 44.0 at 320 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 325 K | epsilon1' = 44.8 at 325 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 330 K | epsilon1' = 45.1 at 330 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 335 K | epsilon1' = 45.1 at 335 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 340 K | epsilon1' = 45.4 at 340 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 345 K | epsilon1' = 45.4 at 345 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 350 K | epsilon1' = 45.4 at 350 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 355 K | epsilon1' = 45.4 at 355 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk dielectric constant epsilon1 at 360 K | epsilon1' = 46.0 at 360 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 300 K | epsilon2' = 40.3 at 300 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 305 K | epsilon2' = 41.2 at 305 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 310 K | epsilon2' = 41.7 at 310 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 315 K | epsilon2' = 42.6 at 315 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 320 K | epsilon2' = 43.4 at 320 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 325 K | epsilon2' = 44.0 at 325 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 330 K | epsilon2' = 44.8 at 330 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 335 K | epsilon2' = 45.7 at 335 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 340 K | epsilon2' = 46.5 at 340 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 345 K | epsilon2' = 47.4 at 345 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 350 K | epsilon2' = 48.2 at 350 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 355 K | epsilon2' = 48.8 at 355 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface dielectric constant epsilon2 at 360 K | epsilon2' = 49.6 at 360 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 300 KMarked as a best value within this paper | sigma1 = 4.88E-08 S/cm at 300 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 305 K | sigma1 = 6.14E-08 S/cm at 305 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 310 K | sigma1 = 7.68E-08 S/cm at 310 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 315 K | sigma1 = 9.49E-08 S/cm at 315 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 320 K | sigma1 = 1.17E-07 S/cm at 320 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 325 K | sigma1 = 1.50E-07 S/cm at 325 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 330 K | sigma1 = 1.91E-07 S/cm at 330 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 335 K | sigma1 = 2.44E-07 S/cm at 335 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 340 K | sigma1 = 3.19E-07 S/cm at 340 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 345 K | sigma1 = 4.10E-07 S/cm at 345 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 350 K | sigma1 = 5.19E-07 S/cm at 350 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 355 K | sigma1 = 6.35E-07 S/cm at 355 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit bulk conductivity sigma1 at 360 K | sigma1 = 7.72E-07 S/cm at 360 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 300 K | sigma2 = 4.64E-11 S/cm at 300 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 305 K | sigma2 = 4.98E-11 S/cm at 305 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 310 K | sigma2 = 6.25E-11 S/cm at 310 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 315 K | sigma2 = 6.38E-11 S/cm at 315 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 320 K | sigma2 = 5.72E-11 S/cm at 320 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 325 K | sigma2 = 8.07E-11 S/cm at 325 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 330 K | sigma2 = 9.75E-11 S/cm at 330 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 335 K | sigma2 = 1.02E-10 S/cm at 335 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 340 K | sigma2 = 1.21E-10 S/cm at 340 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 345 K | sigma2 = 1.33E-10 S/cm at 345 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 350 K | sigma2 = 1.53E-10 S/cm at 350 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 355 K | sigma2 = 1.71E-10 S/cm at 355 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |
| Table S4 constrained-fit interface conductivity sigma2 at 360 K | sigma2 = 2.12E-10 S/cm at 360 K | — | — | SI Table Exact Reported | SI p.S9 · Table S4 · Table S4 |