A novel Ag/oxide-based threshold switching device with attractive features including ≈10¹⁰ nonlinearity is developed. High-resolution transmission electron microscopic analysis of the nanoscale crosspoint device suggests that elongation of an Ag nanoparticle under voltage bias followed by spontaneous reformation of a more spherical shape after power off is responsible for the observed threshold switching.
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Midya et al. (2017) studied this question.
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