Internal Forces and the Magnetoconductivity of a Nondegenerate 2D Electron Fluid

TL;DR

This paper investigates how internal forces in a nondegenerate 2D electron fluid influence its magnetoconductivity, combining Monte Carlo simulations with experimental measurements on electrons on liquid helium.

Contribution

It provides the first combined theoretical and experimental analysis of internal forces and magnetotransport in a nondegenerate 2D electron fluid.

Findings

Internal electric fields match simulations closely.

Magnetoconductivity explained by many-electron theory.

Density dependence of sigma(B) characterized.

Abstract

The forces on individual electrons in an unscreened nondegenerate electron fluid, due to electron density fluctuations, have been calculated using Monte Carlo simulations and determined experimentally over a broad range of the plasma parameter Gamma. The experimental results are obtained from the magnetoconductivity sigma(B) measured for electrons on liquid helium below 1 K for B \leq 8 T. The magnitude and density dependence of sigma(B) are explained by the many-electron theory of magnetotransport. The internal electric fields found from the experiments are in excellent agreement with the simulations.