Sub-100 fJ and sub-nanosecond thermally driven threshold switching in niobium oxide crosspoint nanodevices
- 3 May 2012
- journal article
- Published by IOP Publishing in Nanotechnology
- Vol. 23 (21), 215202
- https://doi.org/10.1088/0957-4484/23/21/215202
Abstract
We built and measured the dynamical current versus time behavior of nanoscale niobium oxide crosspoint devices which exhibited threshold switching (current-controlled negative differential resistance). The switching speeds of 110 × 110 nm(2) devices were found to be Δt(ON) = 700 ps and Δt(OFF) = 2:3 ns while the switching energies were of the order of 100 fJ. We derived a new dynamical model based on the Joule heating rate of a thermally driven insulator-to-metal phase transition that accurately reproduced the experimental results, and employed the model to estimate the switching time and energy scaling behavior of such devices down to the 10 nm scale. These results indicate that threshold switches could be of practical interest in hybrid CMOS nanoelectronic circuits.Keywords
This publication has 52 references indexed in Scilit:
- Oxide Double‐Layer Nanocrossbar for Ultrahigh‐Density Bipolar Resistive MemoryAdvanced Materials, 2011
- Nanoscale imaging and control of resistance switching in VO2 at room temperatureApplied Physics Letters, 2010
- Voltage oscillation associated with nonlinear conductivity in the organic conductor α-(BEDT-TTF)2I3Journal of Applied Physics, 2010
- Memristor−CMOS Hybrid Integrated Circuits for Reconfigurable LogicNano Letters, 2009
- A hybrid nanomemristor/transistor logic circuit capable of self-programmingProceedings of the National Academy of Sciences of the United States of America, 2009
- An organic thyristorNature, 2005
- CrossNets: possible neuromorphic networks based on nanoscale componentsInternational Journal of Circuit Theory and Applications, 2003
- Thermal conductivity of sputtered oxide filmsPhysical Review B, 1995
- Demonstration of Some Electrical Properties of Neon-filled LampsProceedings of the Physical Society of London, 1921
- The Neon Tube as a Means of Producing Intermittent CurrentsProceedings of the Physical Society of London, 1921