Impact of electrode nature on the filament formation and variability in HfO<inf>2</inf> RRAM


In this work, we use ab initio simulations to explore neutral and charged Frenkel pair (FP) formation inside HfO<sub>2</sub>. FP plays a crucial role in the conductive filament (CF) formation. We explore two possible mechanisms for the FP formation, namely electron injection and electron detrapping. The existence of one of the two mechanisms or both depends… (More)


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