Volume 83, Number 5, September 2008
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||19 August 2008|
Transport properties of an interacting quantum dot with a non-uniform magnetization
Institut für Physik, Martin-Luther Universität Halle-Wittenberg - Heinrich-Damerow-Str.4, 06120 Halle (Saale), Germany, EU
Corresponding author: firstname.lastname@example.org
Accepted: 8 July 2008
We study the influence of the non-homogeneity of a magnetization field on the behaviour of interacting electrons in a quantum dot. In particular we investigate the magnetotransport properties when the dot is weakly coupled to two ferromagnetic leads. We take into account the interactions in the quantum dot non-perturbatively. For a magnetization which varies slowly on the scale of the Fermi wavelength, the non-homogeneity effect is described by a gauge potential that can be treated perturbatively.
PACS: 72.25.Mk – Spin transport through interfaces / 73.63.Kv – Quantum dots / 85.75.-d – Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields
© EPLA, 2008
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