Table 2.
T (K) | σ dc (S/cm) | ω H (Hz) | n | n c (cm −3 ) | μ (cm 2 V −1 s −1 ) | D (cm 2 s −1 ) |
---|---|---|---|---|---|---|
SPS-850 | ||||||
230 | 1.15 × 10−10 | 4.87 × 102 | 0.60 | 6.08 × 1020 | 1.18 × 10−12 | 2.34 × 10−14 |
240 | 4.16 × 10−10 | 1.68 × 103 | 0.60 | 6.62 × 1020 | 3.92 × 10−12 | 8.11 × 10−14 |
250 | 1.45 × 10−9 | 5.21 × 103 | 0.60 | 7.78 × 1020 | 1.16 × 10−11 | 2.51 × 10−13 |
260 | 5.32 × 10−9 | 1.93 × 104 | 0.61 | 7.99 × 1020 | 4.16 × 10−11 | 9.31 × 10−13 |
270 | 1.75 × 10−8 | 6.10 × 104 | 0.62 | 8.65 × 1020 | 1.26 × 10−10 | 2.94 × 10−12 |
SPS-875 | ||||||
220 | 1.47 × 10−10 | 5.90 × 102 | 0.61 | 6.13 × 1020 | 1.50 × 10−12 | 2.84 × 10−14 |
230 | 5.37 × 10−10 | 2.12 × 103 | 0.61 | 6.50 × 1020 | 5.16 × 10−12 | 1.02 × 10−13 |
240 | 1.83 × 10−9 | 6.48 × 103 | 0.61 | 7.56 × 1020 | 1.51 × 10−11 | 3.12 × 10−13 |
250 | 6.44 × 10−9 | 2.32 × 104 | 0.62 | 7.74 × 1020 | 5.19 × 10−11 | 1.12 × 10−12 |
260 | 2.18 × 10−8 | 7.33 × 104 | 0.62 | 8.64 × 1020 | 1.57 × 10−10 | 3.53 × 10−12 |
SPS-900 | ||||||
240 | 1.28 × 10−10 | 4.88 × 102 | 0.60 | 7.02 × 1020 | 1.14 × 10−12 | 2.35 × 10−14 |
250 | 4.63 × 10−10 | 1.83 × 103 | 0.62 | 7.07 × 1020 | 4.09 × 10−12 | 8.80 × 10−14 |
260 | 1.69 × 10−9 | 6.36 × 103 | 0.64 | 7.71 × 1020 | 1.37 × 10−11 | 3.06 × 10−13 |
270 | 5.97 × 10−9 | 2.30 × 104 | 0.66 | 7.81 × 1020 | 4.77 × 10−11 | 1.11 × 10−12 |
280 | 1.85 × 10−8 | 6.83 × 104 | 0.64 | 8.45 × 1020 | 1.37 × 10−10 | 3.30 × 10−12 |
The values of the dc conductivity σ dc, the hopping frequency ω H, the exponent n, the concentration of mobile Li ions n c, the mobility μ, and the diffusion coefficient D are summarized for the SPS LLT garnet nanoceramics at different temperatures.