Berlin 2015 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 42: Transport: Topological Insulators 3 (jointly with DS, HL, MA, O)
TT 42.2: Vortrag
Dienstag, 17. März 2015, 14:15–14:30, H 0110
Trasport signatures of a Zeeman-split quantum dot coupled to a helical edge state — •Benedikt Probst1, Pauli Virtanen2, and Patrik Recher1 — 1Institut für Mathematische Physik, TU Braunschweig, 38106 Braunschweig, Germany — 2O.V. Lounasmaa Laboratory, Aalto University School of Science, Finland
We investigate the transport signatures of a Zeeman-split quantum dot (QD) containing a single spin 1/2 weakly coupled to a helical Luttinger liquid (HLL) within a generalized master equation approach. The HLL induces a tunable magnetization direction on the QD controlled by an applied bias voltage when the quantization axes of the QD and the HLL are noncollinear. This tunability allows to extract characteristic signatures of a HLL and the spin dynamics of the QD via the backscattering conductance and the current noise.