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Simulation of longitudinal instabilities in filamentary current flow during low-temperature impurity breakdown in semiconductors. (English) Zbl 1138.82369
In this paper there are reported some results on numerical studies of nonstationary regimes of both a nascent and a fully developed current filament in samples with point contact geometry. In the model studied by the authors the influence of a perpendicular magnetic field is allowed. The main direction considered in the present paper is related to wave-like instabilities of the current filaments in the breakdown regime within a realistic two-dimensional simulation. Several nonlinear numerical simulations are also provided in the paper.
MSC:
82D37 Statistical mechanics of semiconductors
82D40 Statistical mechanics of magnetic materials
82D55 Statistical mechanics of superconductors
Software:
WIAS-TeSCA
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