Lognormal switching times for titanium dioxide bipolar memristors: origin and resolution. Academic Article uri icon


  • We measured the switching time statistics for a TiO(2) memristor and found that they followed a lognormal distribution, which is a potentially serious problem for computer memory and data storage applications. We examined the underlying physical phenomena that determine the switching statistics and proposed a simple analytical model for the distribution based on the drift/diffusion equation and previously measured nonlinear drift behavior. We designed a closed-loop switching protocol that dramatically narrows the time distribution, which can significantly improve memory circuit performance and reliability.

published proceedings

  • Nanotechnology

author list (cited authors)

  • Medeiros-Ribeiro, G., Perner, F., Carter, R., Abdalla, H., Pickett, M. D., & Williams, R. S.

citation count

  • 72

complete list of authors

  • Medeiros-Ribeiro, Gilberto||Perner, Frederick||Carter, Richard||Abdalla, Hisham||Pickett, Matthew D||Williams, R Stanley

publication date

  • March 2011