Sample | Substrate temperature, Ts (K) | Current density, j (MA/cm2) | Current stressing time (s) | Formed Structure | Diameter of sphere (μm) |
S1 | 623 | 8.33 | 1860 | Microsphere | 6.54 |
S2 | 623 | 8.33 | 1920 | Microsphere goes outside | 7.48 |
S3 | 623 | 8.33 | 1320 | Microsphere | 7.46 |
S4 | 623 | 8.33 | 1620 | Microsphere goes outside | 8.41 |