Single-electron pumping in a ZnO single-nanobelt transistor

Diluted magnetic semiconductors (DMSs) have traditionally been employed to implement spin-based quantum computing and quantum information processing. However, their low Curie temperature creates the necessity for wide bandgap DMSs operating at room temperature. Now researchers from Institute of Physics have built a single-electron transistor (SET) with a global back-gate using a wide bandgap ZnO nanobelt. Clear Coulomb oscillations and accurate single -electron pumping were achieved, which are useful for quantum computing and quantum information.