Table 1 The structures and annealing temperatures of samples S1–S3
Sample | Film structures | Annealing temperature |
---|---|---|
S1 | 2 × (20-cycle Al2O3 + 20-cycle La2O3) | 600 °C |
S2 | 2 × (20-cycle Al2O3 + 20-cycle La2O3) | 800 °C |
S3 | 40 × (1-cycle Al2O3 + 1-cycle La2O3) | 600 °C |