Disorder screening near the Mott-Anderson transition
arXiv:0704.0450 · doi:10.1016/j.physb.2007.10.213
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 epsilon_R^i 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).
2 pages, 3 figures, submitted to SCES proceedings
References in corpus (4)
- Mott--Hubbard transition vs. Anderson localization of correlated, disordered electrons
- Typical medium theory of Anderson localization: A local order parameter approach to strong disorder effects
- Disorder Screening in Strongly Correlated Systems
- Scaling behavior of an Anderson impurity close to the Mott-Anderson transition
Cited by in corpus (6)
- Critical behavior at Mott-Anderson transition: a TMT-DMFT perspective
- Non Fermi liquid behavior and continuously tunable resistivity exponents in the Anderson-Hubbard model at finite temperature
- Self-consistent study of Anderson localization in the Anderson-Hubbard model in two and three dimensions
- Typical-Medium Theory of Mott-Anderson Localization
- Local Spectroscopies Reveal Percolative Metal in Disordered Mott Insulators
- Transport and spectroscopic signatures of a disorder-stabilized metal in two-dimensional frustrated Mott insulators