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Creators/Authors contains: "Kim, Chung Soo"

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  1. Free, publicly-accessible full text available July 16, 2026
  2. Enhanced Zn anode kinetics and reversibility are achieved at a high ZUR by guiding Zn2+plating underlying the SnO1.17interphase with a regulated (101) orientation, surpassing those achieved by inducing Zn(002) plating overlying the interphase. 
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    Free, publicly-accessible full text available April 15, 2026
  3. Finite element analysis provides visual insights into conductive path evolution in a SiO2-based memristor. Electrochemical impedance spectroscopy experimentally validated the theoretical findings by interpreting with an equivalent circuit. 
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  4. The overarching goal herein is to identify the factors dominating the performance of a‐IGZO‐based memristors. Despite the highest on/off ratio, greater than 104with a preferred minimal set/reset bias achieved from a‐IGZO‐based memristors, it is observed that the switching performance and stability/reliability of the devices is significantly dominated by theVO··density and metallization material, depending on their reactivity with IGZO. As the first governing factor, ensuring optimalVO··concentration in the switching layer IGZO (VO··/OOxratio 24.3% in this study) is crucial to obtain the tractable formation and rupture of conduction filament. Neither higher nor lowerVO··density than the optimized results in detrimental reliability issues, which may be ascribed to an uncontrollable filament in an abundant vacancy environment or a weak conducting path, respectively. As the second governing mechanism determining the memristor performance and reliability, it is suggested that metallization materials need to be carefully selected based on the thermodynamic redox potential and interfacial stability of the metallization material with IGZO. Metallization materials with larger reduction potential and interfacial stability are found to yield higher switching on/off ratio and greater device performance reliability. 
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