Rate-limiting processes in the fast SET operation of a gapless-type Cu-Ta2O5 atomic switch

T. Tsuruoka, T. Hasegawa, I. Valov, R. Waser, M. Aono

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29 Citations (Scopus)


The speed of the SET operation of a CuTa2O5Pt atomic switch from a high-resistance state to a low-resistance state was measured by transient current measurements under the application of a short voltage pulse. The SET time decreased exponentially with increasing pulse amplitude, reaching as low as 1 ns using moderate pulse voltages. This observation shows that oxide-based atomic switches hold potential for fast-switching memory applications. From a comparison with atomistic nucleation theory, Cu nucleation on the Pt electrode was found to be the likely rate-limiting process determining the SET time.

Original languageEnglish
Article number032114
JournalAIP Advances
Issue number3
Publication statusPublished - 2013 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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