Interactions and scaling in a disordered two-dimensional metal

1997/12/18 by Sudip Chakravarty, Lan Yin, Elihu Abrahams · 2 citations
Materials Science · Physics and Astronomy · #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.dis-nn

paper · pdf · doi:10.1103/physrevb.58.r559

published as Phys. Rev. B 58, R559 (1998). · 4 pages, RevTex

arxiv created 1997/12/18 · openalex publication_date 1998/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that a non-Fermi-liquid state of interacting electrons in two dimensions is stable in the presence of disorder and is a perfect conductor, provided the interactions are sufficiently strong. Otherwise, the disorder leads to localization as in the case of noninteracting electrons. This conclusion is established by examining the replica field theory in the weak-disorder limit, but in the presence of arbitrary electron-electron interaction. Thus, a disordered two-dimensional metal is a perfect metal, but not a Fermi liquid.

Citations

• Scaling Theory of Localization: Absence of Quantum Diffusion in Two Dimensions

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