Magnetic field dependence of edge states in MoS${}_2$ quantum dots

Abstract

We study the electronic structure of monolayer MoS${}_2$ quantum dots subject to a perpendicular magnetic field. The coupling between conduction and valence band gives rise to mid-gap topological states which localize near the dot edge. These edge states are analogous to those of 1D quantum rings. We show they present a large, Zeeman-like, linear splitting with the magnetic field, anticross with the delocalized Fock-Darwin-like states of the dot, give rise to Aharonov-Bohm-like oscillations of the conduction (valence) band low-lying states in the K (K') valley, and modify the strong field Landau levels limit form of the energy spectrum.

arXiv commentsubmitted as extension to Chapter 17 of "Physics of Quantum Rings" (Springer, ed.V. Fomin), 2nd edition

Cited by in corpus (1)

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