Selected Publications
 

Isotropic and Anisotropic g-Factor Corrections in GaAs Quantum Dots

Leon C. Camenzind, Simon Svab, Peter Stano, Liuqi Yu, Jeramy D. Zimmerman, Arthur C. Gossard, Daniel Loss, Dominik M. Zumbühl

We experimentally determine isotropic and anisotropic g-factor corrections in lateral GaAs single-electron quantum dots. We extract the Zeeman splitting by measuring the tunnel rates into the individual spin states of an empty quantum dot for an in-plane magnetic field with various strengths and directions. We quantify the Zeeman energy and find a linear dependence on the magnetic field strength that allows us to extract the g factor. The measured g factor is understood in terms of spin-orbit interaction induced isotropic and anisotropic corrections to the GaAs bulk g factor. Experimental detection and identification of minute band-structure effects in the g factor is of significance for spin qubits in GaAs quantum dots.


Phys. Rev. Lett. 127, 057701 (2021)

doi: 10.1103/PhysRevLett.127.057701

arxiv: https://arxiv.org/abs/2010.11185

supplemental material: https://journals.aps.org/prl/supplemental/10.1103/PhysRevLett.127.057701/supplementary_rev1.pdf