Dresden 2014 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 26: Quantum Wires: Transport Properties (organized by HL)

TT 26.1: Vortrag

Montag, 31. März 2014, 16:00–16:15, POT 006

Strongly interacting holes in Ge/Si core/shell nanowires — •Franziska Maier, Tobias Meng, and Daniel Loss — Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland

We consider holes confined to the core of Ge/Si core/shell nanowires subject to strong Rashba spin-orbit coupling and screened Coulomb interactions. We find that both, spin-orbit coupling and Coulomb interactions, are largely dependent on wire radius, shell-induced strain and the magnitude of applied electric fields. This tunability allows to drive the system from a Luttinger liquid phase towards a Wentzel-Bardeen singularity.