Nonlinear surface electron transport over liquid helium

Plasma dispersion of multisubband electron systems over liquid helium

X iv :c on dm at /0 00 55 45 v1 [ co nd -m at .s tr -e l] 3 1 M ay 2 00 0 Plasma dispersion of multisubband electron systems over liquid helium Sviatoslav S. Sokolov Departamento de F́isica, Universidade Federal de São Carlos, 13565-905 São Carlos, São Paulo, Brazil and B. I. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 61164 Kharkov, Ukr...

Surface State Electron Dynamics on Deformed Liquid Helium Films

Electrons can form stable two-dimensional systems above the surface of dielectric substances like superžuid liquid helium (LHe). Due to the extreme purity and smoothness of the LHe surface, electrons on bulk LHe proved to be a versatile (with respect to the facility for changing physical parameters like temperature and magnetic eld, but especially electron density) and clean (with respect to e...

Properties of Electron Bubbles in Liquid Helium

We present calculations of a number of properties of electron bubbles in liquid helium. The size and shape of bubbles containing electrons in different quantum states is determined based on a simplified model. We then find how the geometry of these bubbles changes with the applied pressure. The radiative lifetime of bubbles with electrons in excited states is calculated. Finally, we use a quant...

Neutron reflection from the liquid helium surface

Cavitation of Electron Bubbles in Liquid Helium Below Saturation Pressure

We have used a Hartree-type electron-helium potential together with a density functional description of liquid 4He and 3He to study the explosion of electron bubbles submitted to a negative pressure. The critical pressure at which bubbles explode has been determined as a function of temperature. It has been found that this critical pressure is very close to the pressure at which liquid helium b...