5 papers
Current oscillations in Vanadium Dioxide: evidence for electrically triggered percolation avalanches
Tom Driscoll, Jack Quinn, Giwan Seo +5
In this work, we experimentally and theoretically explore voltage controlled oscillations occurring in micro-beams of vanadium dioxide. These oscillations are a result of the rever…
Reconfigurable Gradient Index using VO2 Memory Metamaterials
M. D. Goldflam, T. Driscoll, B. Chapler +9
We demonstrate tuning of a metamaterial device that incorporates a form of spatial gradient control. Electrical tuning of the metamaterial is achieved through a vanadium dioxide la…
Chaotic memristor
T. Driscoll, Y. V. Pershin, D. N. Basov +1
We suggest and experimentally demonstrate a chaotic memory resistor (memristor). The core of our approach is to use a resistive system whose equations of motion for its internal st…
Memory Metamaterials
Tom Driscoll, Hyun-Tak Kim, Byung-Gyu Chae +7
The resonant elements that grant metamaterials their unique properties have the fundamental limitation of restricting their useable frequency bandwidth. The development of frequenc…
Phase-transition driven memristive system
Tom Driscoll, Hyun-Tak Kim, Byung-Gyu Chae +2
Memristors are passive circuit elements which behave as resistors with memory. The recent experimental realization of a memristor has triggered interest in this concept and its pos…