Quantum-limited shot noise and quantum interference in graphene-based Corbino disk

Abstract

This is a theoretical study of finite voltage effects on the conductance, the shot-noise power and the third, charge-transfer cumulant for graphene-based Corbino disk in the presence of external magnetic fields. Periodic magnetoconductance oscillations, predicted in earlier works, become invisible for relatively small source–drain voltages, as the current decays rapidly with magnetic field. Quantum interference still governs the behaviour of higher charge-transfer cumulants.

Keywords:

• graphene
• shot noise
• Corbino disk
• quantum interference

Additional information

Funding

The work was supported by the National Science Centre of Poland (NCN) via [grant number N–N202–031440] and partly by Foundation for Polish Science (FNP) under the program TEAM. The computations were partly performed using the PL-Grid infrastructure.