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Mean field approach to the correlation effects on the density of electronic states and conductivity of disordered metals
(Wiley-V C H Verlag Gmbh, 2002) Çaliskan, S; Sasioglu, E; Kumru, M; Nakhmedov, EP; Çakiroglu, Ö; Karaoglu, B
Effects of correlation in weakly disordered systems on the density of electronic states (DOS) and the conductivity are examined in the framework of the mean field approach. As a result of the approximation, the electronic energy spectrum is changed from a free electron energy spectrum to a Hartree exchange term added energy spectrum form. Coulomb interaction is shown to give a correction to the DOS, which reduces the electronic states. Calculations of the conductivity show that, although Coulomb interaction evaluated by the mean field theory decreases the Drude conductivity, it acts as a dephasing factor for the quantum localization correction to the conductivity.
The vanishing of magnetic flux over a closed surface
(Amer Assoc Physics Teachers Amer Inst Physics, 2002) Karaoglu, B
A simple proof of the vanishing of magnetic flux over a closed surface, based on elementary vector algebra and symmetry considerations, is presented. (C) 2002 American Association of Physics Teachers.