Mechanism of branching in negative ionization fronts.

  title={Mechanism of branching in negative ionization fronts.},
  author={Manuel Array{\'a}s and Marco Antonio Fontelos and Jos{\'e} L. Trueba},
  journal={Physical review letters},
  volume={95 16},
When a strong electric field is applied to nonconducting matter, narrow channels of plasma called streamers may form. Branchlike patterns of streamers have been observed in anode directed discharges. We explain a mechanism for branching as the result of a balance between the destabilizing effect of impact ionization and the stabilizing effect of electron diffusion on ionization fronts. The dispersion relation for transversal perturbation of a planar negative front is obtained analytically when… CONTINUE READING

2 Figures & Tables