{ "id": "1103.2895", "version": "v2", "published": "2011-03-15T12:50:25.000Z", "updated": "2011-07-08T01:45:13.000Z", "title": "Spin filling of valley-orbit states in a silicon quantum dot", "authors": [ "W. H. Lim", "C. H. Yang", "F. A. Zwanenburg", "A. S. Dzurak" ], "comment": "6 pages, 4 figures, to appear in Nanotechnology", "journal": "Nanotechnology 22, 335704 (2011)", "doi": "10.1088/0957-4484/22/33/335704", "categories": [ "cond-mat.mes-hall" ], "abstract": "We report the demonstration of a low-disorder silicon metal-oxide-semiconductor (Si MOS) quantum dot containing a tunable number of electrons from zero to N=27. The observed evolution of addition energies with parallel magnetic field reveals the spin filling of electrons into valley-orbit states. We find a splitting of 0.10 meV between the ground and first excited states, consistent with theory and placing a lower bound on the valley splitting. Our results provide optimism for the realization in the near future of spin qubits based on silicon quantum dots.", "revisions": [ { "version": "v2", "updated": "2011-07-08T01:45:13.000Z" } ], "analyses": { "keywords": [ "silicon quantum dot", "valley-orbit states", "spin filling", "parallel magnetic field", "low-disorder silicon metal-oxide-semiconductor" ], "tags": [ "journal article" ], "publication": { "journal": "Nanotechnology", "year": 2011, "month": "Aug", "volume": 22, "number": 33, "pages": 335704 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011Nanot..22G5704L" } } }