Three-dimensional calculation of electronic structures in semiconductor quantum ring based artificial molecules

摘要: We theoretically investigate the energy spectra of vertically coupled quantum rings (VCQRs) with a three-dimensional (3D) model under applied magnetic fields. Two interesting configurations, disk- and conical-shaped (DI CO) small VCQRs are explored. The electron hole energies significantly dominated by inter-distance d, which plays crucial role in tunable states structures. For electrons, state is nonperiodical transition among lowest electron. holes, it does also demonstrate same behavior. band gap oscillates nonperiodically between holes as function external In addition, oscillation controlled not only topology VCQR inner (and base) radius but variation d. This investigation constructive studying magneto-optical phenomena nanoscale semiconductor artificial molecules, particular for laser device applications.