Abstract
Collective impact ionization has been used to explain lock-on in semi-insulating GaAs under high-voltage bias. We have used this theory to study some of the steady state properties of lock-on current filaments. In steady state, the heat gained from the field is exactly compensated by the cooling due to phonon scattering. In the simplest approximation, the carrier distribution approaches a quasi-equilibrium Maxwell-Boltzmann distribution. In this report, we examine the validity of this approximation. We find that this approximation leads to a filament carrier density which is much lower than the high density needed to achieve a quasi-equilibrium distribution. Further work on this subject is in progress.
Original language | English |
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Pages | 791-794 |
Number of pages | 4 |
State | Published - 1999 |
Event | 12th IEEE International Pulsed Power Conference - Monterey, CA, USA Duration: Jun 27 1999 → Jun 30 1999 |
Conference
Conference | 12th IEEE International Pulsed Power Conference |
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City | Monterey, CA, USA |
Period | 06/27/99 → 06/30/99 |