Magnetoresistance of nondegenerate quantum electron channels formed on the surface of superfluid helium

TL;DR

This paper investigates the magnetoresistance behavior of nondegenerate quantum electron channels on superfluid helium, revealing strong magnetoresistance effects that intensify at lower temperatures, using advanced theoretical methods.

Contribution

It provides a theoretical analysis of magnetoresistance in quantum nondegenerate channels on helium, considering interactions with vapor atoms and capillary waves, which was not previously explored.

Findings

Quantum channels show strong magnetoresistance.

Magnetoresistance increases as temperature decreases.

Interaction with scatterers influences transport properties.

Abstract

Transport properties of quasi-one-dimensional nondegenerate quantum wires formed on the surface of liquid helium in the presence of a normal magnetic field are studied using the momentum balance equation method and the memory function formalism. The interaction with both kinds of scatterers available (vapor atoms and capillary wave quanta) is considered. We show that unlike classical wires, quantum nondegenerate channels exhibit strong magnetoresistance which increases with lowering the temperature.