{ "id": "cond-mat/0412048", "version": "v2", "published": "2004-12-02T12:48:07.000Z", "updated": "2004-12-05T17:32:59.000Z", "title": "Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot", "authors": [ "J. R. Petta", "A. C. Johnson", "A. Yacoby", "C. M. Marcus", "M. P. Hanson", "A. C. Gossard" ], "comment": "related papers at http://marcuslab.harvard.edu", "journal": "Phys. Rev. B (RC) 72, 161301 (2005)", "doi": "10.1103/PhysRevB.72.161301", "categories": [ "cond-mat.mes-hall" ], "abstract": "A pulsed-gate technique with charge sensing is used to measure the singlet-triplet relaxation time for nearly-degenerate spin states in a two-electron double quantum dot. Transitions from the (1,1) charge occupancy state to the (0,2) state, measured as a function of pulse cycle duration and magnetic field, allow the (1,1) singlet-triplet relaxation time (~70 microseconds) and the (0,2) singlet-triplet splitting to be measured. The use of charge sensing rather than current measurement allows long relaxation times to be readily probed.", "revisions": [ { "version": "v2", "updated": "2004-12-05T17:32:59.000Z" } ], "analyses": { "keywords": [ "two-electron double quantum dot", "singlet-triplet relaxation time", "pulsed-gate measurements", "pulse cycle duration", "charge occupancy state" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }