Mechanism for enhanced disordered screening in strongly correlated metals: local vs. nonlocal effects
Strongly Correlated Electrons
2011-09-20 v1
Abstract
We study the low temperature transport characteristics of a disordered metal in the presence of electron-electron interactions. We compare Hartree-Fock and dynamical mean field theory (DMFT) calculations to investigate the scattering processes of quasiparticles off the screened disorder potential and show that both the local and non-local (coming from long-ranged Friedel oscillations) contributions to the renormalized disorder potential are suppressed in strongly renormalized Fermi liquids. Our results provide one more example of the power of DMFT to include higher order terms left out by weak-coupling theories.
Keywords
Cite
@article{arxiv.1109.3730,
title = {Mechanism for enhanced disordered screening in strongly correlated metals: local vs. nonlocal effects},
author = {E. C. Andrade and E. Miranda and V. Dobrosavljevic},
journal= {arXiv preprint arXiv:1109.3730},
year = {2011}
}
Comments
4 pages, 1 figure; contribution to the Stripes 2011 conference proceedings