Dynamical Scaling at the Quantum Hall Transition: Coulomb Blockade versus Phase Breaking

D. G. Polyakov and K. V. Samokhin
Phys. Rev. Lett. 80, 1509 – Published 16 February 1998
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Abstract

We argue that the finite-temperature dynamics of the integer quantum Hall system is governed by two independent length scales. The consistent scaling description of the transition makes crucial use of two temperature-critical exponents, reflecting the interplay between charging effects and interaction-induced dephasing. Experimental implications of the two-scale picture are discussed.

  • Received 26 June 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.1509

©1998 American Physical Society

Authors & Affiliations

D. G. Polyakov1,* and K. V. Samokhin2,†

  • 1Institut für Theoretische Physik, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany
  • 2Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom

  • *Also at A. F. Ioffe Physico-Technical Institute, 194021 St. Petersburg, Russia.
  • Also at L. D. Landau Institute for Theoretical Physics, 117940 Moscow, Russia.

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Vol. 80, Iss. 7 — 16 February 1998

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