Desynchronisation of local oscillators due to local potential losses

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:

  1. ohmic losses: (DUlocal=Relectrolyte,silicon*Ilocal)
  2. diffusion losses: described by the Nernst equation

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

Fig. 5

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.


index.gif zurueck.gif