Interaction footprints in two-dimensional disordered electronic systems

Yshai Avishai, Richard Berkovits

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The effect of electron—electron interaction on the properties of a two-dimensional disordered electronic system are studied, guided by the quest for a cojectured existence of a possibly interaction induced metal-insulator transition (MIT). Numerical simulations performed on small systems indicate that the long-range Coulomb electron-electron interaction leads to a significant enhancement of the persistent current. At the same time, the effect of electron-electron interaction on the conductance is rather small so that, strictly speaking, there is no interaction-induced MIT in two-dimensional electronic systems. Finally, the statistics of energy levels for strongly correlated disordered systems is discussed, and the variation in statistics as a function of the electron-electron interaction is traced.

Original languageEnglish
Pages (from-to)1115-1122
Number of pages8
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume77
Issue number5
DOIs
StatePublished - 1 Jan 1998

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Physics and Astronomy

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