Insights into Nanoscale Electrochemical Reduction in a Memristive Oxide: the Role of Three-Phase Boundaries

Christian Lenser; Marten Patt; Stephan Menzel; Annemarie Koehl; Carsten Wiemann; Claus M. Schneider; Rainer Waser; Regina Dittmann

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Insights into Nanoscale Electrochemical Reduction in a Memristive Oxide: the Role of Three-Phase Boundaries

机译：忆阻性氧化物中纳米级电化学还原的见解：三相边界的作用

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The nanoscale electro-reduction in a memristive oxide is a highly relevant field for future non-volatile memory materials. Photoemission electron microscopy is used to identify the conducting filaments and correlate them to structural features of the top electrode that indicate a critical role of the three phase boundary (electrode-oxide-ambient) for the electro-chemical reduction. Based on simulated temperature profiles, the essential role of Joule heating through localized currents for electro-reduction and morphology changes is demonstrated.

机译：忆阻氧化物中的纳米级电还原是未来非易失性存储材料的高度相关领域。光电子显微镜用于识别导电丝，并将其与顶部电极的结构特征相关联，这些特征表明三相边界（电极-氧化物-环境）对于电化学还原起着至关重要的作用。基于模拟的温度曲线，证明了通过局部电流进行焦耳加热对于电还原和形态变化的重要作用。

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《Advanced Functional Materials》 |2014年第28期|4466-4472|共7页
作者
Christian Lenser; Marten Patt; Stephan Menzel; Annemarie Koehl; Carsten Wiemann; Claus M. Schneider; Rainer Waser; Regina Dittmann;
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Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany,Research Center Juelich, JARA-FIT 52425 Juelich, Germany,University of Duisburg-Essen Faculty of Physics D-47048 Duisburg, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany,Research Center Juelich, JARA-FIT 52425 Juelich, Germany,Institute of Materials in Electrical Engineering and Information Technology Ⅱ RWTH Aachen University D-52056 Aachen, Germany;

Peter Gruenberg Institute, Research Center Juelich 52425 Juelich, Germany;

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Insights into Nanoscale Electrochemical Reduction in a Memristive Oxide: the Role of Three-Phase Boundaries

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