Magnetic and geometric effects on the electronic transport of metallic nanotubes

TL;DR

This paper numerically studies how magnetic and geometric effects influence electronic transport in metallic nanotubes with non-cylindrical shapes, revealing potential applications as energy filters and angular momentum tuners.

Contribution

It introduces a numerical analysis of metallic nanotubes with geometric deviations under magnetic fields, highlighting their potential as electronic filters and angular momentum controllers.

Findings

Nanotubes can function as energy high-pass filters for electrons.

Geometric deviations enable tuning of electron angular momentum.

Magnetic fields influence electronic transport properties.

Abstract

The investigation of curved low-dimensional systems is a topic of great research interest. Such investigations include two-dimensional systems with cylindrical symmetry. In this work, we present a numerical study of the electronic transport properties of metallic nanotubes deviating from the cylindrical form either by having a bump or a depression, and under the influence of a magnetic field. Under these circumstances, it is found that the nanotube may be used as an energy high-pass filter for electrons. It is also shown that the device can be used to tune the angular momentum of transmitted electrons.