| Téléchargement | - Voir la version finale : Electrically tunable effective g-factor of a single hole in a lateral GaAs/AlGaAs quantum dot (PDF, 3.3 Mio)
- Voir les données supplémentaires : Electrically tunable effective g-factor of a single hole in a lateral GaAs/AlGaAs quantum dot (PDF, 685 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1038/s42005-019-0262-1 |
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| Auteur | Rechercher : Studenikin, Sergei1; Rechercher : Korkusinski, Marek1; Rechercher : Takahashi, Motoi1; Rechercher : Ducatel, Jordan1; Rechercher : Padawer-Blatt, Aviv1; Rechercher : Bogan, Alex1; Rechercher : Austing, D. Guy1; Rechercher : Gaudreau, Louis1; Rechercher : Zawadzki, Piotr1; Rechercher : Sachrajda, Andrew1; Rechercher : Hirayama, Yoshiro; Rechercher : Tracy, Lisa; Rechercher : Reno, John; Rechercher : Hargett, Terry |
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| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Sujet | electronic and spintronic devices; quantum information; qubits |
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| Résumé | Electrical tunability of the g-factor of a confined spin is a long-time goal of the spin qubit field. Here we utilize the electric dipole spin resonance (EDSR) to demonstrate it in a gated GaAs double-dot device confining a hole. This tunability is a consequence of the strong spin-orbit interaction (SOI) in the GaAs valence band. The SOI enables a spin-flip interdot tunneling, which, in combination with the simple spin-conserving charge transport leads to the formation of tunable hybrid spin-orbit molecular states. EDSR is used to demonstrate that the gap separating the two lowest energy states changes its character from a charge-like to a spin-like excitation as a function of interdot detuning or magnetic field. In the spin-like regime, the gap can be characterized by the effective g-factor, which differs from the bulk value owing to spin-charge hybridization, and can be tuned smoothly and sensitively by gate voltages. |
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| Date de publication | 2020-01 |
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| Maison d’édition | Nature Research |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 8b1e3a75-96c5-4092-89d1-fc4622d85218 |
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| Enregistrement créé | 2020-11-24 |
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| Enregistrement modifié | 2021-02-09 |
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