{ "id": "cond-mat/0011009", "version": "v1", "published": "2000-11-01T12:25:49.000Z", "updated": "2000-11-01T12:25:49.000Z", "title": "High Frequency Conductivity in the Quantum Hall Regime", "authors": [ "F. Hohls", "U. Zeitler", "R. J. Haug" ], "journal": "Phys. Rev. Lett. 86 (22), 5124 (2001)", "doi": "10.1103/PhysRevLett.86.5124", "categories": [ "cond-mat.mes-hall" ], "abstract": "We have measured the complex conductivity $\\sigma_{xx}$ of a two-dimensional electron system in the quantum Hall regime up to frequencies of 6 GHz at electron temperatures below 100 mK. Using both its imaginary and real part we show that $\\sigma_{xx}$ can be scaled to a single function for different frequencies and for all investigated transitions between plateaus in the quantum Hall effect. Additionally, the conductivity in the variable-range hopping regime is used for a direct evaluation of the localization length $\\xi$. Even for large filing factor distances $\\delta \\nu$ from the critical point we find $\\xi \\propto \\delta \\nu^{-\\gamma}$ with a scaling exponent $\\gamma=2.3$.", "revisions": [ { "version": "v1", "updated": "2000-11-01T12:25:49.000Z" } ], "analyses": { "keywords": [ "quantum hall regime", "high frequency conductivity", "two-dimensional electron system", "quantum hall effect", "large filing factor distances" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }