| Sample | Cur. mode | Time (min) | I− (A) |
|
| CR | |
| U | Uni. | 30 | N/A | N/A | N/A | N/A | |
| B | Bip. | 30 | 0.63 | 400 | 100 | 0.74 | |
| H1 | Uni. H11 | 15 | N/A | N/A | N/A | N/A | |
| Bip. H12 | 15 | 0.63 | 400 | 100 | 0.74 | ||
| H2 | Bip. H21 | 15 | 0.63 | 400 | 100 | 0.74 | |
| Uni. H22 | 15 | N/A | N/A | N/A | N/A | ||