Exploration de la transition Berezinskii-Kosterlitz-Thouless avec des excitons dipolaires

Autor: Dang, Suzanne

Ces travaux sont consacrés à l'étude d'un gaz d'excitons bidimensionnel créé dans un double puits quantique de semi-conducteurs. Grâce à un champ électrique appliqué perpendiculairement au plan des puits, les deux composants de l'exciton, l'

Externí odkaz: http://www.theses.fr/2018SORUS385/document

Dynamical control over the confinement of spatially indirect excitons in electrostatic traps of GaAs coupled quantum wells

Autor: Beian, Mussie, Dang, Suzanne, Alloing, Mathieu, Anankine, Romain, Cambril, Edmond, Gomez, Carmen, Osmond, Johann, Lemaitre, Aristide, Dubin, Francois

We study spatially indirect excitons confined in a 10 $\mu$m wide electrostatic trap of a GaAs double quantum well. We introduce a technique to control the amplitude of the electric field interacting with the excitons electric dipole, with nanosecond

Externí odkaz: http://arxiv.org/abs/1710.10878

Quantized Vortices and Four-Component Superfluidity of Semiconductor Excitons

Autor: Anankine, Romain, Beian, Mussie, Dang, Suzanne, Alloing, Mathieu, Cambril, Edmond, Merghem, Kamel, Carbonell, Carmen Gomez, Lemaitre, Aristide, Dubin, Francois

Publikováno v: Phys. Rev. Lett. 118, 127402 (2017)

We study spatially indirect excitons of GaAs quantum wells, confined in a 10 microns electrostatic trap. Below a critical temperature of about 1 Kelvin, we detect macroscopic spatial coherence and quantised vortices in the weak photoluminescence emit

Externí odkaz: http://arxiv.org/abs/1606.04755

Defect Proliferation at the Quasicondensate Crossover of Two-Dimensional Dipolar Excitons Trapped in Coupled GaAs Quantum Wells

Autor: Dang, Suzanne, Anankine, Romain, Gomez, Carmen, Lemaitre, Aristide, Holzmann, Markus, Dubin, François

Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2019, 122 (11), ⟨10.1103/PhysRevLett.122.117402⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8fa15728b143b89f929b095dd5d01561
https://hal.archives-ouvertes.fr/hal-03015095

Temporal coherence of spatially indirect excitons across Bose–Einstein condensation: the role of free carriers

Autor: Anankine, Romain, Dang, Suzanne, Beian, Mussie, Cambril, Edmond, Carbonell, Carmen Gomez, Lemaitre, Aristide, Dubin, François

Publikováno v: New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2018, 20 (7), pp.073049. ⟨10.1088/1367-2630/aad30a⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9a687ab0cd39e192e930532de1dffdf6
https://hal.archives-ouvertes.fr/hal-03015127