Trapping Dipolar Exciton Fluids in GaN/(AlGa)N Nanostructures.
basic_science · Level V
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- Record sourced from PubMed, PMID 31241962.
- Also identified by DOI 10.1021/acs.nanolett.9b00914.
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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.