{ "id": "cond-mat/0608482", "version": "v1", "published": "2006-08-22T14:38:07.000Z", "updated": "2006-08-22T14:38:07.000Z", "title": "Quantum critical behaviour of the plateau-insulator transition in the quantum Hall regime", "authors": [ "A. de Visser", "L. A. Ponomarenko", "G. Galistu", "D. T. N. de Lang", "A. M. M. Pruisken", "U. Zeitler", "D. Maude" ], "comment": "8 pages, accepted for publication in Proceedings of the Yamada Conference LX on Research in High Magnetic Fields (August 16-19, 2006, Sendai)", "journal": "J. Phys.: Conference Series 51 (2006) 379-386", "doi": "10.1088/1742-6596/51/1/088", "categories": [ "cond-mat.mes-hall" ], "abstract": "High-field magnetotransport experiments provide an excellent tool to investigate the plateau-insulator phase transition in the integral quantum Hall effect. Here we review recent low-temperature high-field magnetotransport studies carried out on several InGaAs/InP heterostructures and an InGaAs/GaAs quantum well. We find that the longitudinal resistivity $\\rho_{xx}$ near the critical filling factor $\\nu_{c}$ ~ 0.5 follows the universal scaling law $\\rho_{xx}(\\nu, T) \\propto exp[-\\Delta \\nu/(T/T_{0})^{\\kappa}]$, where $\\Delta \\nu =\\nu -\\nu_{c}$. The critical exponent $\\kappa$ equals $0.56 \\pm 0.02$, which indicates that the plateau-insulator transition falls in a non-Fermi liquid universality class.", "revisions": [ { "version": "v1", "updated": "2006-08-22T14:38:07.000Z" } ], "analyses": { "keywords": [ "quantum hall regime", "quantum critical behaviour", "plateau-insulator transition", "low-temperature high-field magnetotransport studies" ], "tags": [ "conference paper", "journal article" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }