{ "id": "0908.3104", "version": "v2", "published": "2009-08-21T11:28:05.000Z", "updated": "2009-08-22T07:57:27.000Z", "title": "Fine structure of two-electron states in single and double quantum dots", "authors": [ "M. M. Glazov" ], "comment": "9 pages, 6 figures", "journal": "J. Phys.: Condens. Matter 22, 025301 (2010)", "doi": "10.1088/0953-8984/22/2/025301", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "Energy spectrum fine structure of triplet two-electron states is investigated theoretically. Spin-orbit interaction induced terms in the effective Hamiltonian of electron-electron interaction are derived for zinc-blende lattice semiconductor nanostructures: quantum wells and quantum dots. The effects of bulk and structural inversion asymmetry are taken into account. Simple analytical expressions describing the splittings of the two-electron states localized in a single quantum dot and in a lateral double quantum dot are derived. The spin degeneracy of triplet states is shown to be completely lifted by the spin-orbit interaction. An interplay of the conduction band spin splitting and the spin-orbit terms in electron-electron interaction is discussed. The photoluminescence spectra of hot trions and of doubly charged excitons are calculated and are shown to reveal the fine structure of two-electron states.", "revisions": [ { "version": "v2", "updated": "2009-08-22T07:57:27.000Z" } ], "analyses": { "keywords": [ "energy spectrum fine structure", "electron-electron interaction", "zinc-blende lattice semiconductor nanostructures", "triplet two-electron states", "spin-orbit interaction induced terms" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Physics Condensed Matter", "year": 2010, "month": "Jan", "volume": 22, "number": 2, "pages": "025301" }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010JPCM...22b5301G" } } }