Table 1.
The conductivity and the activation energy of SPS LLT nanoceramics
| σ dc (S/cm) | Δ E (e.V) | Δ E (e.V) | E σ (e.V) | E H (e.V) | E D (e.V) | E m (e.V) | |
|---|---|---|---|---|---|---|---|
| <350 K | >350 K | ||||||
| SPS-850 | 2.98 × 10−7 | 0.67 | 0.58 | 0.67 | 0.65 | 0.65 | 0.67 |
| SPS-875 | 1.25 × 10−6 | 0.64 | 0.52 | 0.61 | 0.59 | 0.59 | 0.64 |
| SPS-900 | 1.3 × 10−7 | 0.69 | 0.61 | 0.72 | 0.72 | 0.72 | 0.69 |
The dc conductivity σdc at 27°C and the associated activation energy ΔE at the low- and high-temperature regions of the SPS LLT garnet nanoceramics. The activation energy values determined from the conduction E σ, the hopping frequency E H, the diffusion coefficient E D, and the electric modulus relaxation time E m are also summarized.