Figure 3.

Schematic of oxygen vacancy-formed multiconducting filaments depicting the switching process in Zr/CeOx/Pt device. (a) Initial, (b) reset, and (c) set states. Note that unfilled (filled) circles represent oxygen vacancies (ions) in the CeOx films.

Ismail et al. Nanoscale Research Letters 2014 9:45   doi:10.1186/1556-276X-9-45
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