Resistive switching conducting filament electroformation with an electrothermal phase field method

A phase field method self-consistently coupled to continuum heat transport and charge conservation is used to simulate conducting filament dynamical evolution and nanostructure of electroformed resistive switching thin films. Our method does not require a pre-defined idealized conducting filament, a...

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Bibliographic Details
Published in:Applied physics letters 2023-08, Vol.123 (8)
Main Authors: Sevic, John F., Kobayashi, Nobuhiko P.
Format: Article
Language:English
Subjects:
Applied physics
Electroforming
Evolution
Heat transmission
Nanostructure
Switching
Thin films
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Summary:A phase field method self-consistently coupled to continuum heat transport and charge conservation is used to simulate conducting filament dynamical evolution and nanostructure of electroformed resistive switching thin films. Our method does not require a pre-defined idealized conducting filament, as previous methods do, instead treating its dynamical evolution as a stochastic diffuse interface problem subject to a variational principle. Our simulation results agree well with available experimental observations, correctly reproducing electroformed conducting filament nanostructure exhibited by a variety of resistive switching thin films.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0151532