Steady state properties of lock-on current filaments in GaAs

K. Kambour, Samsoo Kang, Charles W. Myles, Harold P. Hjalmarson

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations

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 languageEnglish
Pages791-794
Number of pages4
StatePublished - 1999
Event12th IEEE International Pulsed Power Conference - Monterey, CA, USA
Duration: Jun 27 1999Jun 30 1999

Conference

Conference12th IEEE International Pulsed Power Conference
CityMonterey, CA, USA
Period06/27/9906/30/99

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