Regensburg 2007 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 31: Low-dimensional Systems - Models I

TT 31.4: Vortrag

Donnerstag, 29. März 2007, 18:30–18:45, H19

Correlated electrons with spin-orbit coupling in quantum dots and quantum wires — •Jens Eiko Birkholz and Volker Meden — Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen

We use the functional renormalization group to investigate correlated electrons with spin-orbit coupling, represented by Rashba and Dresselhaus terms, in quantum dots and quantum wires. The interacting system is connected to semi-infinite leads which are considered to be interaction-free. Such setups are of interest as spin-filters in spintronics applications. As a measure for the electron transport through the dot and wire, we focus on the spin-dependent linear-response conductance. The interplay of electronic correlations and spin-orbit coupling leads to interesting physics.