Isotropic and Anisotropic g-factor Corrections in GaAs Quantum Dots

Camenzind, Leon C. and Svab, Simon and Stano, Peter and Yu, Liuqi and Zimmerman, Jeramy D. and Gossard, Arthur C. and Loss, Daniel and Zumbühl, Dominik M.. (2020) Isotropic and Anisotropic g-factor Corrections in GaAs Quantum Dots. Physical Review Letters, 127 (5). 057701 .

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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 which 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. Because this implies a dependence of the spin splitting on the magnetic field direction, these findings are of significance for spin qubits in GaAs quantum dots.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentalphysik Quantenphysik (Zumbühl)
UniBasel Contributors:Zumbühl, Dominik Mm
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:12 Apr 2022 09:47
Deposited On:11 May 2021 08:57

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