Electrode-Limited Conduction Mechanisms | Bulk-Limited Conduction Mechanisms |
1. Schottky emission | 1. Poole-Frenkele emission |
2. Fowler-Nordheim tunneling | 2. Hopping conduction |
3. Direct tunneling | 3. Ohmic conduction |
4. Thermionic-field emission | 4. Space-charge-limited conduction |
| 5. Ionic conduction |
| 6. Grain-boundary-limited conduction |