DOI: 10.1063/5.0151532 ISSN:
Resistive switching conducting filament electroformation with an electrothermal phase field method
John F. Sevic, Nobuhiko P. Kobayashi- Physics and Astronomy (miscellaneous)
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.