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-centered superlattice quantum solid. This phase is realized with high purity across 36 lattice sites, in a regime where the mean interaction energy exceeds the depth of the electrostatic lattice confinement. The superlattice solid then closely relates to Wigner crystals.
Original language | English (US) |
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Article number | 176001 |
Journal | Physical review letters |
Volume | 132 |
Issue number | 17 |
DOIs | |
State | Published - Apr 26 2024 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy