Quantization Conductivity of Surface Electrons over Superfluid Helium at the Charged Substrate Channels

Abstract

The carry features of a quasi-one-dimensional surface electrons (Q1D-SEs) over the superfluid helium at the charged profiled substrate is investigated by the transport method. Substrate is row the optical fiber segments. The experiments carried out in temperature range 1.5 K-0.6 K at electron densities up to 109 cm-2. According a phase diagram “electron gas - Wigner crystal” research performed in the electron gas region at temperature higher the Fermi energy and at electron density far “quantum melting». The substrate electrostatic model in the electric field demonstrates the potential modulation in the cross section lets to charge the fiber tops increasing thereby the Q1D-SE potential well. The surface electrons motion satisfies the quantization condition in view both the temperature and the electron relaxation time. Lower of some temperature the conductivity is a steps-like and it differential is a peaks-like simile to the electron states density with the peak distance according energy spectrum. Pronounced steps at lowering temperature can be caused the electron density redistribution on the energy levels and the SEs thermo-activation motion near the channel bounders.