Electrically tunedgtensor in an InAs self-assembled quantum dot

Abstract

We investigate the all-electrical tuning of the Land\'e $g$ tensor in a single uncapped InAs quantum dot contacted with a nanogap electrode technique and electrically gated with both back- and side-gate electrodes. Magnetotransport measurements allow extraction of the $g$ tensor components from measurements of the Zeeman energy for magnetic fields applied in the plane of the sample. The side-gate electrode allows tuning of the anisotropy of the in-plane $g$ tensor components and is suitable for the manipulation of the quantum-dot spin states using $g$ factor modulation resonance schemes.