Transport theory of quantum dots based on transition metal dichalcogenides

Atomically thin transition metal dichalcogenides (TMDs) represent a conceptually new class of materials that have large bandgaps, strong spin-orbit couplings, and multiple valley degrees of freedom. One particular characteristic of TMDs is their even-odd layer-dependent band structures that have been theoretically predicted and experimentally observed. We study the transport properties of few-layer TMDs in the quantum dot geometry and predict unconventional Coulomb peaks and Kondo resonances when such a dot is tunnel coupled to two normal leads. The irrational peak ratios and fractional resonance conductances found in our study suggest that TMDs provide a unique platform for novel quantum dot physics.