Electrotunable artificial molecules based on van der Waals heterostructures.

ABSTRACT: Quantum confinement has made it possible to detect and manipulate single-electron charge and spin states. The recent focus on two-dimensional (2D) materials has attracted significant interests on possible applications to quantum devices, including detecting and manipulating either single-electron charging behavior or spin and valley degrees of freedom. However, the most popular model systems, consisting of tunable double-quantum-dot molecules, are still extremely difficult to realize in these materials. We show that an artificial molecule can be reversibly formed in atomically thin MoS₂ sandwiched in hexagonal boron nitride, with each artificial atom controlled separately by electrostatic gating. The extracted values for coupling energies at different regimes indicate a single-e

SUBMITTER: Zhang ZZ 

PROVIDER: S-EPMC5650488 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature