{ "id": "1802.09584", "version": "v1", "published": "2018-02-26T20:14:38.000Z", "updated": "2018-02-26T20:14:38.000Z", "title": "Magnetic field dependence of electronic properties of MoS$_2$ quantum dots with different edges", "authors": [ "Q. Chen", "L. L. Li", "F. M. Peeters" ], "comment": "11 pages, 9 figures, Accepted by Phys. Rev. B", "categories": [ "cond-mat.mes-hall" ], "abstract": "Using the tight-binding approach, we investigate the energy spectrum of square, triangular and hexagonal MoS$_2$ quantum dots (QDs) in the presence of a perpendicular magnetic field. Novel edge states emerge in MoS$_2$ QDs, which are distributed over the whole edge which we call ring states. The ring states are robust in the presence of spin-orbit coupling (SOC). The corresponding energy levels of the ring states oscillate as function of the perpendicular magnetic field which are related to Aharonov-Bohm oscillations. Oscillations in the magnetic field dependence of the energy levels and the peaks in the magneto-optical spectrum emerge (disappear) as the ring states are formed (collapsed). The period and the amplitude of the oscillation decreases with the size of the MoS$_2$ QDs.", "revisions": [ { "version": "v1", "updated": "2018-02-26T20:14:38.000Z" } ], "analyses": { "keywords": [ "magnetic field dependence", "quantum dots", "electronic properties", "ring states", "perpendicular magnetic field" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }