Model of Reversible Breakdown in HfO₂ Based on Fractal Patterns

Figure 4

Comparison between experiments performed on RRAM cells of the type Pt/HfO₂/Pt. HfO₂ and simulations: (a) measured (symbols) and calculated (lines) values of versus ; (b) measured (symbols) and calculated (lines) Weibull distributions of times to soft breakdown. The model parameters used in the simulations are , ,  cm/V, and  MV/cm.

(a)

(b)