Real-time observation on dynamic growth/dissolution of conductive filaments in oxide-electrolyte-based ReRAM.

Liu, Qi; Sun, Jun; Lv, Hangbing; Long, Shibing; Yin, Kuibo; Wan, Neng; Li, Yingtao; Sun, Litao et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

Evolution of growth/dissolution conductive filaments (CFs) in oxide-electrolyte-based resistive switching memories are studied by in situ transmission electron microscopy. Contrary to what is commonly believed, CFs are found to start growing from the anode (Ag or Cu) rather than having to reach the cathode (Pt) and grow backwards. A new mechanism based on local redox reactions inside the oxide-electrolyte is proposed.

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