A compact model for selectors based on metal doped electrolyte
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.
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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