Electron flow in Monolayer Molybdenum Disulfide Quantum Dot with Magnetic Flux

TL;DR

This paper investigates how magnetic flux influences electron scattering in a monolayer MoS2 quantum dot, revealing flux-dependent shifts and amplitude changes in scattering characteristics.

Contribution

It provides analytical solutions for Dirac electron scattering in MoS2 quantum dots under magnetic flux, highlighting flux-dependent effects on scattering properties.

Findings

Magnetic flux causes shifts in scattering oscillations.

Magnetic flux affects the amplitude of scattering efficiency.

Scattering coefficients depend explicitly on magnetic flux.

Abstract

We study the Dirac electron scattering problem on a potential barrier in a circular quantum dot of Monolayer Molybdenum Disulfide quantum dot MoS2 subjected to magnetic flux. By solving Dirac's equation, we formulate analytical expressions for the eigenstates, scattering coefficients, scattering efficiency, and the reflected current's radial component. We show that the scattering coefficients, the scattering efficiency, and the radial component of the reflected current depend explicitly on the magnetic flux. The magnetic flux may cause a slight shift in the oscillation position of the scattering coefficients. For scattering efficiency, magnetic flux may also lead to a slight shift in their oscillation position and an increase in amplitude when the magnetic flux decreases.