| Issue |
EPL
Volume 83, Number 5, September 2008
|
|
|---|---|---|
| Article Number | 57003 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/83/57003 | |
| 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: nicholas.sedlmayr@physik.uni-halle.de
Received:
7
April
2008
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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