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Mechanism for Enhanced Disordered Screening in Strongly Correlated Metals: Local vs. Nonlocal Effects |
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| Authors: | Eric C Andrade Eduardo Miranda Vladimir Dobrosavljevi? |
| Affiliation: | 1. Institut f??r Theoretische Physik, Technische Universit?t Dresden, 01062, Dresden, Germany 2. Instituto de F??sica Gleb Wataghin, Unicamp, Campinas, SP, 13083-859, Brazil 3. Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32306, USA |
| Abstract: | We study the low temperature transport characteristics of a disordered metal in the presence of electron?Celectron interactions. We compare Hartree?CFock 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. |
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