Morphological Transformations of Top Electrodes on YMnO3 Caused by Filamentary Resistive Switching in the Oxide Matrix

Agnieszka Bogusz; Daniel Blaschke; Danilo Bürger; Oliver G. Schmidt; Heidemarie Schmidt

doi:10.4028/www.scientific.net/AMR.1101.120

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1101Morphological Transformations of Top Electrodes on...

Morphological Transformations of Top Electrodes on YMnO₃ Caused by Filamentary Resistive Switching in the Oxide Matrix

Abstract:

Unipolar resistive switching in YMnO₃ with large-scale bottom and small-scale top electrodes is analyzed in detail by tracking the morphological transformations of the top electrodes induced by applied writing voltages. Micro-scale digital images are taken after each subsequent quasi-static current-voltage sweep. Current mapping after electrical investigations indicates a shift in the conductivity at the localized areas of the morphologically transformed top electrodes. Those changes are assigned to the heat induced structural and compositional changes within YMnO₃ which lead to the formation and rupture of conductive filaments observed as unipolar resistive switching. Presented results underline the importance of Joule heating in the fostering of resistive switching and its adverse impact on the device endurance.

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Advanced Materials Research (Volume 1101)

Pages:

120-123

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1101.120

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Online since:

April 2015

Authors:

Agnieszka Bogusz*, Daniel Blaschke, Danilo Bürger, Oliver G. Schmidt, Heidemarie Schmidt

Keywords:

Joule Heating, Morphological Changes of Electrode, Multiferroic YMnO₃, Resistive Switching

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