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Topology Driven g-Factor Tuning in Type-II Quantum Dots

AuthorsLlorens Montolio, José Manuel ; Lopes-Oliveira, V.; López-Richard, V.; Cardozo de Oliveira, E. R.; Wewior, Lukasz Jakub ; Ulloa, J. M.; Teodoro, M. D.; Marques, G. E.; García-Cristobal, Alberto; Quiang-Hai, G.; Alén, Benito
Issue Date4-Apr-2019
PublisherAmerican Physical Society
CitationPhysical Review Applied 11(4): 044011 (2019)
AbstractWe investigate how the voltage control of the exciton lateral dipole moment induces a transition from singly to doubly connected topology in type-II InAs/GaAsxSb1−x quantum dots. The latter causes visible Aharonov-Bohm oscillations and a change of the exciton g factor, which are modulated by the applied bias. The results are explained in the frame of realistic →k⋅→p and effective Hamiltonian models and could open a venue for new spin quantum memories beyond the InAs/GaAs realm.
Publisher version (URL)https://doi.org/10.1103/PhysRevApplied.11.044011
Appears in Collections:(IMN-CNM) Artículos
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