Abstract
The formation of a double layer is proposed as the mechanism which produces the critical velocity phenomenon. We examine this hypothesis, qualitatively, and find that the double layer can be a very efficient mechanism for transferring the kinetic energy of the neutral gas into the kinetic energy of electrons which, in turn, will ionize the neutral gas if the critical velocity has been reached or exceeded.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
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