{ "id": "cond-mat/9802118", "version": "v1", "published": "1998-02-11T14:15:51.000Z", "updated": "1998-02-11T14:15:51.000Z", "title": "Changes in the Magnetization of a Double Quantum Dot", "authors": [ "T. H. Oosterkamp", "S. F. Godijn", "M. J. Uilenreef", "Y. V. Nazarov", "N. C. van der Vaart", "L. P. Kouwenhoven" ], "comment": "6 pages, plus 3 figures", "doi": "10.1103/PhysRevLett.80.4951", "categories": [ "cond-mat.mes-hall" ], "abstract": "From accurate measurements of the energy states in a double quantum dot we deduce the change in magnetization due to single electron tunneling. As a function of magnetic field we observe crossings and anti-crossings in the energy spectrum. The change in magnetization exhibits wiggles as a function of magnetic field with maximum values of a few effective Bohr magnetons in GaAs. These wiggles are a measure of the chaotic motion of the discrete energy states versus magnetic field. Our results show good agreement with a numeric calculation but deviate significantly from semiclassical estimates.", "revisions": [ { "version": "v1", "updated": "1998-02-11T14:15:51.000Z" } ], "analyses": { "keywords": [ "double quantum dot", "magnetization", "magnetic field", "discrete energy states", "effective bohr magnetons" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }