Abstract
Although TaO x memristors have demonstrated encouraging write/erase endurance and nanosecond switching speeds, the linear current-voltage (I-V) characteristic in the low resistance state limits their applications in large passive crossbar arrays. We demonstrate here that a TiO 2-x/TaO x oxide heterostructure incorporated into a 50 nm× 50 nm memristor displays a very large nonlinearity such that I(V/2) ≈ I(V)/100 for V ≈ 1 volt, which is caused by current-controlled negative differential resistance in the device.
| Original language | English |
|---|---|
| Article number | 113501 |
| Journal | Applied Physics Letters |
| Volume | 100 |
| Issue number | 11 |
| DOIs | |
| State | Published - 12 Mar 2012 |