Many-electron magnetoconductivity in 2D electrons on liquid helium

Abstract

The magnetoconductivity of σ( B) of nondegenerate two-dimensional electrons on superfluid helium was measured and calculated below 1 K in fields B up to 8 tesla. The results show that the internal electric fields from electron-electron interactions strongly influence σ( B) in the 2D electron fluid. This internal field strength is in good agreement with Monte Carlo simulations. The magnetoconductivity increases at the transition to the 2D solid phase.