current filament

A current filament is an inhomogeneity in the current density distribution lateral to the direction of the current flow (that is, orthogonal to the current density vector).{{Cite book |last1=Kerner |first1=B. S. |url=https://books.google.com/books?id=uG_uCAAAQBAJ |title=Autosolitons: A New Approach to Problems of Self-Organization and Turbulence |last2=Osipov |first2=V. V. |date=2013-06-29 |publisher=Springer Science & Business Media |isbn=978-94-017-0825-8 |language=en |chapter=Chapter 5. Current Filaments in Systems with Single-Valued Voltage-Current Characteristic}} It is common in devices showing current-type negative differential conductivity, especially of S-type (SNDC).