Allthough there exists a synchronizing procedure for two neighboring growing current bursts there exissts a desynchronization mechanism which supresses the nucleation of a current bursts at small distances to a second "burning" (i.e. current consuming) current burst. A hight local current flow will reduce the local potential due to several physical reasons:
In a simple approach this may be included into the model just by a radial symmetric (with respect to the center of the burrent burst chanel) potential drop and a corresponding change in the elctric field strength as displayt in the following figure
The local potential losses we must take into account when calculating the electric field strength across an oxide layer to get the probabilities for the start or the end of a local current burst.
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