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Updated: May 27, 2026

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
Published on: May 13, 2020
Measuring the switching dynamics and energy efficiency of tantalum oxide memristors
John Paul Strachan1, Antonio C Torrezan, Gilberto Medeiros-Ribeiro
1nanoElectronics Research Group, HP Labs, 1501 Page Mill Road, Palo Alto, CA 94304, USA. john-paul.strachan@hp.com
Abstract:
We measured the real-time switching of metal-oxide memristors with sub-nanosecond resolution and recorded the evolution of the current and voltage during both ON (set) and OFF (reset) events. From these we determined the dynamical behavior of the conductivity for different applied bias amplitudes. Quantitative analysis of the energy cost and switching dynamics showed 115 fJ for ON-switching and 13 pJ for OFF-switching when resistance change was limited to 200%. Results are presented that show a favorable scaling with speed in terms of energy cost and reducing unnecessary damage to the devices.
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