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

doi:10.1063/1.4795140

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

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 language	English
Article number	032114
Journal	AIP Advances
Volume	3
Issue number	3
DOIs	https://doi.org/10.1063/1.4795140
Publication status	Published - 2013 Mar
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4795140

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

abstract = "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.",

author = "T. Tsuruoka and T. Hasegawa and I. Valov and R. Waser and M. Aono",

note = "Funding Information: The authors would like to thank A. Ohi and T. Ohki of MANA Foundry at NIMS for their assistance in the fabrication of the cell integrated into the CPW structure. This work was supported in part by the Iketani Science and Technology Foundation and JSPS KAKENHI Grant Number 24350278.",

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doi = "10.1063/1.4795140",

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T1 - Rate-limiting processes in the fast SET operation of a gapless-type Cu-Ta2O5 atomic switch

AU - Tsuruoka, T.

AU - Hasegawa, T.

AU - Valov, I.

AU - Waser, R.

AU - Aono, M.

N1 - Funding Information: The authors would like to thank A. Ohi and T. Ohki of MANA Foundry at NIMS for their assistance in the fabrication of the cell integrated into the CPW structure. This work was supported in part by the Iketani Science and Technology Foundation and JSPS KAKENHI Grant Number 24350278.

PY - 2013/3

Y1 - 2013/3

N2 - 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.

AB - 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.

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

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