Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7934199 | Physica E: Low-dimensional Systems and Nanostructures | 2015 | 6 Pages |
Abstract
The oscillatory behavior obtained by the Hartree-Fock approximation reproduces the shape obtained by us in a non-interacting system (U=0). The S sign is sensitive to different polarization of the quantum dot, and as a consequence the device could be employed to experimentally detect the polarization states of the system. Our results also confirm that the large increase of S upon increasing U, obtained by the mean field approximation, is correct only for low temperatures. We also discuss the role of the Kondo peak in defining the behavior of the spin thermopower at low temperatures.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
E. Ramos, J. Silva-Valencia, R. Franco, E.C. Siqueira, M.S. Figueira,