{ "id": "0711.4446", "version": "v1", "published": "2007-11-28T08:23:50.000Z", "updated": "2007-11-28T08:23:50.000Z", "title": "Quasi-bound states of quantum dots in single and bilayer graphene", "authors": [ "A. Matulis", "F. M. Peeters" ], "comment": "8 figures", "doi": "10.1103/PhysRevB.77.115423", "categories": [ "cond-mat.mes-hall" ], "abstract": "Dirac fermions interacting with a cylindrically symmetric quantum dot potential created in single and bilayer graphene are not confined but form quasi-bound states. The broadening of these quasi-bound states (i. e. the inverse of their lifetimes) decreases (increases) with the orbital momentum of the electron in the case of graphene (bilayer). Quasi-bound states with energy below (above) the barrier height are dominantly electron(hole)-like. A remarkable decrease of the energy level broadening is predicted for electron energies close to the barrier height, which are a consequence of the total internal reflection of the electronic wave at the dot edge.", "revisions": [ { "version": "v1", "updated": "2007-11-28T08:23:50.000Z" } ], "analyses": { "subjects": [ "73.63.Kv", "73.43.Cd", "81.05.Uw" ], "keywords": [ "quasi-bound states", "bilayer graphene", "cylindrically symmetric quantum dot potential", "barrier height" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2008, "month": "Mar", "volume": 77, "number": 11, "pages": 115423 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhRvB..77k5423M" } } }