%0 Journal Article
%T Trapping Dipolar Exciton Fluids in GaN/(AlGa)N Nanostructures
%+ Laboratoire Charles Coulomb (L2C)
%+ Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA)
%A Chiaruttini, François
%A Guillet, Thierry
%A Brimont, Christelle
%A Jouault, Benoit
%A Lefebvre, Pierre
%A Vives, Jessica
%A Chenot, Sebastien
%A Cordier, Yvon
%A Damilano, Benjamin
%A Vladimirova, Maria
%< avec comité de lecture
%@ 1530-6984
%J Nano Letters
%I American Chemical Society
%V 19
%N 8
%P 4911-4918
%8 2019-07-12
%D 2019
%Z 1902.02974
%R 10.1021/acs.nanolett.9b00914
%K have a long
%K Coulomb-bound but spatially separated electron-hole pairs
%K gallium nitride Dipolar excitons
%K gallium nitride
%K electrostatic traps
%K cooling
%K exciton fluid
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]
%Z Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
%Z Engineering Sciences [physics]/Optics / PhotonicJournal articles
%X Dipolar excitons offer a rich playground for both design of novel optoelectronic devices and fundamental many-body physics. Wide GaN/(AlGa)N quantum wells host a new and promising realization of dipolar excitons. We demonstrate the in-plane confinement and cooling of these excitons, when trapped in the electrostatic potential created by semitransparent electrodes of various shapes deposited on the sample surface. This result is a prerequisite for the electrical control of the exciton densities and fluxes, as well for studies of the complex phase diagram of these dipolar bosons at low temperature.
%G English
%2 https://hal.science/hal-02272702/document
%2 https://hal.science/hal-02272702/file/NLtraps_resub.pdf
%L hal-02272702
%U https://hal.science/hal-02272702
%~ UNICE
%~ CNRS
%~ L2C
%~ UNIV-MONTPELLIER
%~ UNIV-COTEDAZUR
%~ TEST-HALCNRS
%~ ANR
%~ CRHEA
%~ UM-2015-2021
%~ UM-EPE