{ "id": "0711.4981", "version": "v1", "published": "2007-11-30T17:18:38.000Z", "updated": "2007-11-30T17:18:38.000Z", "title": "Polaron relaxation in self-assembled quantum dots: Breakdown of the semi-classical model", "authors": [ "T. Grange", "R. Ferreira", "G. Bastard" ], "comment": "5 pages, 4 figure, accepted for publication in Phys. Rev. B (Rapid Com.)", "doi": "10.1103/PhysRevB.76.241304", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We calculate the lifetime of conduction band excited states in self-assembled quantum dots by taking into account LO-phonon-electron interaction and various anharmonic phonon couplings. We show that polaron relaxation cannot be accurately described by a semi-classical model. The contributions of different anharmonic decay channels are shown to depend strongly on the polaron energy. We calculate the energy dependence of polaron lifetime and compare our results to available experimental measurements of polaron decay time in InAs/GaAs quantum dots.", "revisions": [ { "version": "v1", "updated": "2007-11-30T17:18:38.000Z" } ], "analyses": { "subjects": [ "73.21.La", "71.38.-k", "76.60.Es" ], "keywords": [ "self-assembled quantum dots", "polaron relaxation", "semi-classical model", "inas/gaas quantum dots", "polaron decay time" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2007, "month": "Dec", "volume": 76, "number": 24, "pages": 241304 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007PhRvB..76x1304G" } } }