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arXiv · 2401.04639

Superlattice quantum solid of dipolar excitons

Camille Lagoin·Kirk Baldwin·Loren Pfeiffer·Francois Dubin
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Abstract

We study dipolar excitons confined at 330 mK in a square electrostatic lattice of a GaAs double quantum well. In the dipolar occupation blockade regime, at 3/2 filling, we evidence that excitons form a face-centred superlattice quantum solid. This phase is realised with high purity across 36 lattice sites, in a regime where the excitons mean interaction energy exceeds the depth of the lattice confinement. The superlattice solid then closely relates to Wigner crystals.

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Camille Lagoin, Kirk Baldwin, Loren Pfeiffer, Francois Dubin. 2024-01-09. Superlattice quantum solid of dipolar excitons. https://arxiv.org/abs/2401.04639

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