Disordered electron liquid in double quantum well heterostructures: Renormalization group analysis and dephasing rate

2011/02/01 by I. S. Burmistrov, I. V. Gornyi, K. S. Tikhonov · 1 citation
Physics and Astronomy · #Asymmetry #Condensed matter physics #Dephasing #Electron #Electron scattering #Heterojunction #Magnetic field #Magnetoresistance #Observable #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Quantum point contact #Quantum well #Scattering #Semiconductor Quantum Structures and Devices #Weak localization #cond-mat.mes-hall #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.84.075338

published as Phys.Rev.B84:075338,2011 · 15 pages; 5 figures

arxiv created 2011/02/01 · openalex publication_date 2011/08/17 · arxiv updated 2011/08/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report a detailed study of the influence of the electron-electron interaction on physical observables (conductance, etc.) of a disordered electron liquid in double quantum well heterostructure. We find that even in the case of common elastic scattering off electrons in both quantum wells, the asymmetry in the electron-electron interaction across and within quantum wells decouples them at low temperatures. Our results are in quantitative agreement with recent transport experiments on the gated double quantum well Al_xGa_1\ensuremath-xAs/GaAs/Al_xGa_1\ensuremath-xAs heterostructures.

Citations

• Electronic properties in a two-dimensional disordered electron liquid: Spin-valley interplay
• Valley Susceptibility of an Interacting Two-Dimensional Electron System
• Counterflow Measurements in Strongly Correlated GaAs Hole Bilayers: Evidence for Electron-Hole Pairing
• Metal–insulator transition in two-dimensional electron systems
• Metal-Insulator Transition in Disordered Two-Dimensional Electron Systems
• Intervalley scattering and weak localization in Si-based two-dimensional structures
• Bose–Einstein condensation of excitons in bilayer electron systems
• Metallic behavior and related phenomena in two dimensions
• Coulomb Drag in Double Layers with Correlated Disorder
• The Anderson-Mott transition
• In-plane magnetoconductivity of Si MOSFETs: A quantitative comparison of theory and experiment
• Non-Fermi-liquid theory for disordered metals near two dimensions

Cited by

• Finkel'stein nonlinear sigma model: interplay of disorder and interaction in 2D electron systems

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• Emergence of quasimetallic state in a disordered two-dimensional electron gas due to strong interactions