Article ID Journal Published Year Pages File Type
7934199 Physica E: Low-dimensional Systems and Nanostructures 2015 6 Pages PDF
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.
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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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