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