Impact Ionization in ZnS
M. Reigrotzki, M. Stobbe, R. Redmer, W. Schattke
Abstract
The impact ionization rate and its orientation dependence in k space is calculated for ZnS. The numerical results indicate a strong correlation to the band structure. The use of a q-dependent screening function for the Coulomb interaction between conduction and valence electrons is found to be essential. A simple fit formula is presented for easy calculation of the energy dependent transition rate.
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