{ "id": "0710.5259", "version": "v1", "published": "2007-10-28T01:00:09.000Z", "updated": "2007-10-28T01:00:09.000Z", "title": "High sensitivity cantilevers for measuring persistent currents in normal metal rings", "authors": [ "Ania C. Bleszynski Jayich", "Will E. Shanks", "Rob Ilic", "J. G. E. Harris" ], "doi": "10.1116/1.2958247", "categories": [ "cond-mat.mes-hall" ], "abstract": "We propose a new approach to measuring persistent currents in normal metal rings. By integrating micron-scale metal rings into sensitive micromechanical cantilevers and using the cantilevers as torque magnetometers, it should be possible to measure the rings' persistent currents with greater sensitivity than the SQUID-based and microwave resonator-based detectors used in the past. In addition, cantilever-based detectors may allow for measurements in a cleaner electromagnetic environment. We have fabricated ultra sensitive cantilevers with integrated rings and measured their mechanical properties. We present an estimate of the persistent current sensitivity of these cantilever-based detectors, focusing on the limits set by the cantilever's Brownian motion and the shot noise in the laser interferometer that monitors the cantilever.", "revisions": [ { "version": "v1", "updated": "2007-10-28T01:00:09.000Z" } ], "analyses": { "keywords": [ "normal metal rings", "measuring persistent currents", "high sensitivity cantilevers", "cantilever-based detectors", "cantilevers brownian motion" ], "tags": [ "journal article" ], "publication": { "journal": "Journal of Vacuum Science Technology B: Microelectronics and Nanometer Structures", "year": 2008, "volume": 26, "number": 4, "pages": 1412 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008JVSTB..26.1412B" } } }