Cohen, Avraham and Richter, Klaus and Berkovitz, Richard (1998) Spin and Interaction Effects on Charge Distribution and Currents in One-dimensional Conductors and Rings within the Hartree-Fock Approximation. Physical Review B 57 (11), pp. 6223-6226.
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Other URL: http://link.aps.org/abstract/PRB/v57/p6223
Using the self-consistent Hartree-Fock approximation for electrons with spin at zero temperature, we study the effect of the electronic interactions on the charge distribution in a one- dimensional continuous ring containing a single scatterer. We reestablish that the interaction suppresses the decay of the Friedel oscillations. Based on this result, we show that in an infinite one-dimensional conductor containing a weak scatterer, the current is totally suppressed because of a gap opened at the Fermi energy. In a canonical ensemble of continuous rings containing many scatterers, the interactions enhance the average and the typical persistent current.
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 20:57|