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A compact model for selectors based on metal doped electrolyte

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Abstract

A selector device that demonstrates high nonlinearity and low switching voltages was fabricated using HfOx as a solid electrolyte doped with Ag electrodes. The electronic conductance of the volatile conductive filaments responsible for the switching was studied under both static and dynamic conditions. A compact model is developed from this study that describes the physical processes of the formation and rupture of the Ag filament(s). A dynamic capacitance model is used to fit the transient current traces under different voltage bias, which enables the extraction of parameters associated with the various parasitic components in the device.

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Acknowledgements

We would like to acknowledge (in alphabetical order) Dr. Gary Gibson, Dr. Zhiyong Li, Katy Samuels, Dr. R. Stanley Williams, Dr. M-X. Zhang in Hewlett Packard Enterprise Labs, AFRL FA8750-15-2-0048 and NSF XPS-1,337,198 for support of this research work.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Pittsburgh, 15261, Pittsburgh, USA

    Lu Zhang, Hai Li & Yiran Chen

  2. Department of Electrical and Computer Engineering, University of Massachusetts, 01003, Amherst, USA

    Wenhao Song & J. Joshua Yang

Authors
  1. Lu Zhang
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  2. Wenhao Song
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  3. J. Joshua Yang
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  4. Hai Li
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  5. Yiran Chen
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Correspondence to Lu Zhang.

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Zhang, L., Song, W., Yang, J.J. et al. A compact model for selectors based on metal doped electrolyte. Appl. Phys. A 124, 333 (2018). https://doi.org/10.1007/s00339-018-1706-2

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