About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review Letters
Paper
Presence of quantum diffusion in two dimensions: Universal resistance at the superconductor-insulator transition
Abstract
We argue that whenever the transition between the insulating and superconducting phases of a disordered two-dimensional Fermi system at zero temperature (T=0) is continuous, the system behaves like a normal metal right at the transition; i.e., the resistance has a finite, nonzero value at T=0. This value is universalindependent of all microscopic details. These features, consistent with recent measurements on disordered films, are hypothesized to apply to other 2D transitions at T=0, such as Anderson localization with spin-orbit coupling, and the quantum Hall effect. © 1990 The American Physical Society.