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Título: | Charge control in laterally coupled double quantum dots |
Autor: | Muñoz-Matutano, G.; Royo González, Marcos CSIC; Climente, J. I.; Canet-Ferrer, J.; Fuster, David CSIC ORCID ; Alonso-González, Pablo CSIC ORCID ; Fernández-Martínez, Iván CSIC; Martínez Pastor, Juan Pascual CSIC ORCID; González Díez, Yolanda CSIC ORCID; González Sotos, Luisa CSIC ORCID ; Briones Fernández-Pola, Fernando CSIC; Alén, Benito CSIC ORCID | Fecha de publicación: | 27-jul-2011 | Editor: | American Physical Society | Citación: | Physical Review B 84(4): 041308(R) (2011) | Resumen: | We investigate the electronic and optical properties of InAs double quantum dots grown on GaAs (001) and laterally aligned along the [110] crystal direction. The emission spectrum has been investigated as a function of a lateral electric field applied along the quantum dot pair mutual axis. The number of confined electrons can be controlled with the external bias, leading to sharp energy shifts which we use to identify the emission from neutral and charged exciton complexes. Quantum tunneling of these electrons is proposed to explain the reversed ordering of the trion emission lines as compared to that of excitons in our system. | Descripción: | 4 figuras, 4 páginas.-- PACS number(s): 78.67.Hc, 73.21.La, 78.55.Cr | Versión del editor: | http://dx.doi.org/10.1103/PhysRevB.84.041308 | URI: | http://hdl.handle.net/10261/39137 | DOI: | 10.1103/PhysRevB.84.041308 | ISSN: | 1098-0121 |
Aparece en las colecciones: | (IMN-CNM) Artículos (ICMM) Artículos |
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Muñoz-Matutano, G. et al Phys. Rev. B._84_2011.pdf | 432,49 kB | Adobe PDF | Visualizar/Abrir |
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