Microscopic lattice for two-dimensional dipolar excitons

Camille Lagoin; Stephan Suffit; Mathieu Bernard; Maxime Vabre; Kenneth West; Kirk Baldwin; Loren Pfeiffer; François Dubin

doi:10.1103/PhysRevB.102.245428

Microscopic lattice for two-dimensional dipolar excitons

Camille Lagoin, Stephan Suffit, Mathieu Bernard, Maxime Vabre, Kenneth West, Kirk Baldwin, Loren Pfeiffer, François Dubin

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of exciton repulsive dipolar interactions to control the degree of localization in the lattice potential. Moreover, we show that dipolar excitons radiate a narrow-band photoluminescence with a spectral width of a few hundreds of μeV at 340 mK, in both localized and delocalized regimes. This makes our device suitable for explorations of dipolar excitons quasicondensation in a periodic potential.

Original language	English (US)
Article number	245428
Journal	Physical Review B
Volume	102
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.102.245428
State	Published - Dec 29 2020

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.102.245428

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title = "Microscopic lattice for two-dimensional dipolar excitons",

abstract = "We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of exciton repulsive dipolar interactions to control the degree of localization in the lattice potential. Moreover, we show that dipolar excitons radiate a narrow-band photoluminescence with a spectral width of a few hundreds of μeV at 340 mK, in both localized and delocalized regimes. This makes our device suitable for explorations of dipolar excitons quasicondensation in a periodic potential.",

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T1 - Microscopic lattice for two-dimensional dipolar excitons

AU - Lagoin, Camille

AU - Suffit, Stephan

AU - Bernard, Mathieu

AU - Vabre, Maxime

AU - West, Kenneth

AU - Baldwin, Kirk

AU - Pfeiffer, Loren

AU - Dubin, François

PY - 2020/12/29

Y1 - 2020/12/29

N2 - We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of exciton repulsive dipolar interactions to control the degree of localization in the lattice potential. Moreover, we show that dipolar excitons radiate a narrow-band photoluminescence with a spectral width of a few hundreds of μeV at 340 mK, in both localized and delocalized regimes. This makes our device suitable for explorations of dipolar excitons quasicondensation in a periodic potential.

AB - We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of exciton repulsive dipolar interactions to control the degree of localization in the lattice potential. Moreover, we show that dipolar excitons radiate a narrow-band photoluminescence with a spectral width of a few hundreds of μeV at 340 mK, in both localized and delocalized regimes. This makes our device suitable for explorations of dipolar excitons quasicondensation in a periodic potential.

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Microscopic lattice for two-dimensional dipolar excitons

Abstract

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