Electronic Properties of Two Dimensional Electrons Formed on Liquid Helium and Solid Neon

Abstract

Transport of the electrons on the surface of dielectric materials have been studied mainly referring to the electrons on solid neon. The interplay of random potential and the electron correlation is found to be important in this system. In all the regions of the electron correlation, it works to decrease the electron conductivity. In the region where electrons are in a liquid state, the effect of the correlation is understood in terms of the enhancement of electron scattering. While in the crystalline state, a drastic decrease in the conductivity should be interpreted as the pinning of the electron crystal. Nonlinear transport phenomena due to depinning of crystal are observed.