Quantum corrections to the conductivity and Hall coefficient of a two-dimensional electron gas in a dirty AlGaAs/GaAs/AlGaAs quantum well: from the diffusive to the ballistic regime

Abstract

We report an experimental study of quantum conductivity corrections in a low mobility, high density two-dimensional electron gas in a AlGaAs/GaAs/AlGaAs quantum well in a wide temperature range (1.5K - 110K). This temperature range covers both the diffusive and the ballistic interaction regimes for our samples. It has been therefore possible to study the crossover between these regimes for both the longitudinal conductivity and the Hall effect. We perform a parameter free comparison of our experimental data for the longitudinal conductivity at zero magnetic field, the Hall coefficient, and the magnetoresistivity to the recent theories of interaction-induced corrections to the transport coefficients. A quantitative agreement between these theories and our experimental results has been found.

arXiv commentextended version of cond-mat/0412463

References in corpus (15)

• Interaction corrections at intermediate temperatures: I. Longitudinal conductivity and kinetic equation
• Sharp increase of the effective mass near the critical density in a metallic 2D electron system
• Interaction-induced magnetoresistance in a two-dimensional electron gas
• Hole-Hole Interaction Effect in the Conductance of the Two-Dimensional Hole Gas in the Ballistic Regime
• Interaction-induced magnetoresistance: From the diffusive to the ballistic regime
• Magnetoresistance of a 2D electron gas caused by electron interactions in the transition from the diffusive to the ballistic regime
• Interaction Effects in Conductivity of Si Inversion Layers at Intermediate Temperatures
• Nonbackscattering Contribution to the Weak Localization
• Interaction corrections to the Hall coefficient at intermediate temperatures
• In-plane Magnetoconductivity of Si-MOSFET's: A Quantitative Comparison between Theory and Experiment
• Does theory of quantum correction to conductivity agree with experimental data in 2D systems?
• Quantum corrections to conductivity: from weak to strong localization
• Electron-electron interaction at decreasing $k_{F}l$
• Conductivity of a 2DEG in Si/SiGe heterostructure near metal- insulator transition: role of the short and long range scattering potential
• Effects of Electron-Electron and Electron-Phonon Interactions in Weakly Disordered Conductors and Heterostuctures

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• Electron-Electron Interactions in 2D Semiconductor InSe
• Termination of two-dimensional metallic conduction near metal-insulator transition in a Si/SiGe quantum well
• Metallic behaviour in SOI quantum wells with strong intervalley scattering
• Disordered 2D ferromagnetism at the surface of FeSi
• Effect of exchange electron-electron interaction on conductivity of InGaAs single and double quantum wells in ballistic regime