Excess Electron Localization in High-Density Neon Gas

Abstract

Excess electron transport in high-density non polar gases is not restricted to quasifree electron propagating states characterized by very large value of the drift mobility. In some gases, such as He and H2, in specific conditions of temperature and density, excess electrons transport proceeds via localized states, characterized by very small values of the drift mobility. In gases such as Ar, on the contrary, even at the highest densities, it appears that only extended states of high mobility are available for excess electron transport. It is instructive to look at once at the density dependence of the mobility μ 0 of thermal excess electrons in He1, Ne2, and Ar3. (Fig.1).KeywordsElectron MobilitySampling LengthExcess ElectronFilling FractionDrift MobilityThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.