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Updated: Jan 23, 2026

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Trapping Dipolar Exciton Fluids in GaN/(AlGa)N Nanostructures
François Chiaruttini1, Thierry Guillet1, Christelle Brimont1
1L2C , Université de Montpellier, CNRS, Place Eugène Bataillon , F-34095 , Montpellier , France.
Abstract:
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.
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