{ "id": "1005.1237", "version": "v1", "published": "2010-05-07T15:51:16.000Z", "updated": "2010-05-07T15:51:16.000Z", "title": "Heterointerface effects on the charging energy of shallow D- ground state in silicon: the role of dielectric mismatch", "authors": [ "M. J. Calderon", "J. Verduijn", "G. P. Lansbergen", "G. C. Tettamanzi", "S. Rogge", "Belita Koiller" ], "comment": "7 pages, 6 figures", "journal": "Phys. Rev. B 82, 075317 (2010)", "doi": "10.1103/PhysRevB.82.075317", "categories": [ "cond-mat.mes-hall" ], "abstract": "Donor states in Si nanodevices can be strongly modified by nearby insulating barriers and metallic gates. We report here experimental results indicating a strong reduction in the charging energy of isolated As dopants in Si FinFETs relative to the bulk value. By studying the problem of two electrons bound to a shallow donor within the effective mass approach, we find that the measured small charging energy may be due to a combined effect of the insulator screening and the proximity of metallic gates.", "revisions": [ { "version": "v1", "updated": "2010-05-07T15:51:16.000Z" } ], "analyses": { "subjects": [ "85.30.-z", "03.67.Lx", "73.20.Hb", "85.35.Gv" ], "keywords": [ "charging energy", "ground state", "dielectric mismatch", "heterointerface effects", "metallic gates" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2010, "month": "Aug", "volume": 82, "number": 7, "pages": "075317" }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvB..82g5317C" } } }