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Disorder screening near the Mott–Anderson transition

2007/04/03 by M. C. O. Aguiar, V. Dobrosavljević, V. Dobrosavljevic +4 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1016/j.physb.2007.10.213

published as Physica B 403, 1417 (2008) · 2 pages, 3 figures, submitted to SCES proceedings

arxiv created 2007/04/03 · openalex publication_date 2007/11/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 epsilonRi 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 then disorder W, but applies only to a fraction of the sites in the opposite limit (U<W).

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