This title appears in the Scientific Report : 2014 

Insights into Nanoscale Electrochemical Reduction in a Memristive Oxide: the Role of Three-Phase Boundaries
Lenser, Christian (Corresponding Author)
Patt, Marten / Menzel, Stephan / Köhl, Annemarie / Wiemann, Carsten / Schneider, Claus M. / Waser, Rainer / Dittmann, Regina
Elektronische Materialien; PGI-7
Elektronische Eigenschaften; PGI-6
Advanced functional materials, 24 (2014) 28, S. 4466 - 4472
Weinheim Wiley-VCH 2014
10.1002/adfm.201304233
Journal Article
Frontiers of charge based Electronics
Please use the identifier: http://dx.doi.org/10.1002/adfm.201304233 in citations.
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.