1979/03/05 by Elihu Abrahams, Philip W. Anderson, D. C. Licciardello +1 · 120 citations
Physics and Astronomy · #Quantum and electron transport phenomena #Theoretical and Computational Physics #Surface and Thin Film Phenomena
paper · doi:10.1103/physrevlett.42.673
openalex publication_date 1979/03/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Arguments are presented that the T=0 conductance G of a disordered electronic system depends on its length scale L in a universal manner. Asymptotic forms are obtained for the scaling function \ensuremathβ(G)=(dlnG)/(dlnL), valid for both G\ensuremath≪Gc\ensuremath≃\frace2\ensuremathℏ and G\ensuremath≫Gc. In three dimensions, Gc 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 L.