Role of density imbalance in an interacting bilayer hole system.
(2003) Physical Review Letters — Vol. 91, n° 7, p. 76802 (2003)
Files
Tutuc03a.pdf
Open Access - Adobe PDF
- 106.73 KB
Details
- Authors
- Abstract
- We study interacting GaAs hole bilayers in the limit of zero interlayer tunneling. When the layers have equal density, we observe a phase-coherent bilayer quantum Hall state (QHS) at a total filling factor 1, flanked by a reentrant insulating phase at nearby fillings which suggests the formation of a pinned, bilayer Wigner crystal. As we transfer charge from one layer to another, the phase-coherent QHS becomes stronger, evincing its robustness against charge imbalance, but the insulating phase disappears, suggesting that its stability requires the commensurability of the two layers.
- Affiliations
Citations
Tutuc, E., Melinte, S., De Poortere, E. P., & Shayegan, M. (2003). Role of density imbalance in an interacting bilayer hole system. Physical Review Letters, 91(7), 76802. https://doi.org/10.1103/PhysRevLett.91.076802 (Original work published 2003)