{ "id": "1708.05484", "version": "v1", "published": "2017-08-18T02:10:05.000Z", "updated": "2017-08-18T02:10:05.000Z", "title": "Effective tuning of electron charge and spin distribution in a dot-ring nanostructure at the ZnO interface", "authors": [ "Tapash Chakraborty", "Aram Manaselyan", "Manuk Barseghyan" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "Electronic states and the Aharonov-Bohm effect in ZnO quantum dot-ring nanostructures containing few interacting electrons reveal several unique features. We have shown here that in contrast to the dot-rings made of conventional semiconductors, such as InAs or GaAs, the dot-rings in ZnO heterojunctions demonstrate several unique characteristics due to the unusual properties of quantum dots and rings in ZnO. In particular the energy spectra of the ZnO dot-ring and the Aharnov-Bohm oscillations are strongly dependant on the electron number in the dot or in the ring. Therefore even small changes of the confinement potential, sizes of the dot-ring or the magnetic field can drastically change the energy spectra and the behavior of Aharonov-Bohm oscillations in the system. Due to this interesting phenomena it is possible to effectively control with high accuracy the electron charge and spin distribution inside the dot-ring structure. This controlling can be achieved either by changing the magnetic field or the confinement potentials.", "revisions": [ { "version": "v1", "updated": "2017-08-18T02:10:05.000Z" } ], "analyses": { "keywords": [ "electron charge", "zno interface", "quantum dot-ring nanostructures containing", "effective tuning", "energy spectra" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }