Disorder screening near the Mott-Anderson transition

M. C.O. Aguiar, V. Dobrosavljević, E. Abrahams, G. Kotliar

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Correlation-driven screening of disorder is studied within the typical-medium dynamical mean-field theory (TMT-DMFT) of the Mott-Anderson transition. In the strongly correlated regime, the site energies εRi characterizing the effective disorder potential are strongly renormalized due to the phenomenon of Kondo pinning. This effect produces very strong screening when the interaction U is stronger than disorder W, but applies only to a fraction of the sites in the opposite limit (U < W).

Original languageEnglish (US)
Pages (from-to)1417-1419
Number of pages3
JournalPhysica B: Condensed Matter
Volume403
Issue number5-9
DOIs
StatePublished - Apr 1 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Disorder
  • Hubbard model
  • Metal-insulator transition
  • Strong correlation

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