{ "id": "2003.04467", "version": "v1", "published": "2020-03-10T00:03:28.000Z", "updated": "2020-03-10T00:03:28.000Z", "title": "Realization of 5 h/e^2 with graphene quantum Hall resistance array", "authors": [ "Jaesung Park", "Wan-Seop Kim", "Dong-Hun Chae" ], "doi": "10.1063/1.5139965", "categories": [ "cond-mat.mes-hall" ], "abstract": "We report on realization of 10 quantum Hall devices in series fabricated using epitaxial graphene on silicon carbide. Precision measurements with a resistance bridge indicates that the quantized Hall resistance across an array at filling factor 2 is equivalent to 5 h/e^2 within the measurement uncertainty of approximately 4 10-8. A quantum-Hall phase diagram for the array shows that a metrological quantization of 5 h/e^2 can be achieved at the magnetic field of 6 T and temperature of 4 K. This experiment demonstrates the possibility of timely unchangeable resistance reference in various ranges in relaxed experimental conditions.", "revisions": [ { "version": "v1", "updated": "2020-03-10T00:03:28.000Z" } ], "analyses": { "keywords": [ "graphene quantum hall resistance array", "realization", "quantum hall devices", "quantum-hall phase diagram", "silicon carbide" ], "tags": [ "journal article" ], "publication": { "publisher": "AIP" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }