No indications of metal-insulator transition for systems of interacting electrons in two dimensions

Article

关键词: SCALING THEORY;    2-DIMENSIONAL SYSTEM;    WEAK-LOCALIZATION;    PHASE;    B=0;    STATISTICS;    DISTRIBUTIONS;    CONDUCTANCE;    SCATTERING;    BEHAVIOR;   

DOI  :  10.1103/PhysRevB.63.085102

来源: SCIE

【 摘 要 】

The influence of Coulomb interaction on transport properties of spinless electrons in small disordered two-dimensional systems is: studied within a tight-binding model. Spatial correlations, inverse participation ratio, and multifractal spectrum of the zero-temperature local tunneling amplitude as well as the dc Kubo conductance are traced as function of the interaction strength U. When U is increased, all of the above quantities are shifted rather smoothly towards localized behavior, indicating the absence of an interaction-driven insulator-metal transition.

【 授权许可】

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