Abstract
Arguments are presented that the conductance of a disordered electronic system depends on its length scale in a universal manner. Asymptotic forms are obtained for the scaling function , valid for both and . In three dimensions, is an unstable fixed point. In two dimensions, there is no true metallic behavior; the conductance crosses over smoothly from logarithmic or slower to exponential decrease with .
- Received 7 December 1978
DOI:https://doi.org/10.1103/PhysRevLett.42.673
©1979 American Physical Society
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Letters from the Past - A PRL Retrospective
2008 marked PRL’s 50th anniversary. As part of the celebrations a collection of milestone Letters was started. The collection contains Letters that have made long-lived contributions to physics, either by announcing significant discoveries, or by initiating new areas of research.