@article{3a0c2632716142879ad31e02692ca980,
title = "Unusual Landau level pinning and correlated ν=1 quantum Hall effect in hole systems confined to wide GaAs quantum wells",
abstract = "In two-dimensional hole systems confined to wide GaAs quantum wells, where the heavy- and light-hole states are close in energy, we observe a very unusual crossing of the lowest two Landau levels as the sample is tilted in a magnetic field. At a magic tilt angle θ≃34 which surprisingly is independent of the well width or hole density, in a large filling factor range near ν=1, the lowest two levels are nearly degenerate as evidenced by the presence of two-component quantum Hall states. Remarkably, a quantum Hall state is seen at ν=1, consistent with a correlated Ψ111 state.",
author = "Yang Liu and S. Hasdemir and M. Shayegan and Pfeiffer, {L. N.} and West, {K. W.} and Baldwin, {K. W.}",
note = "Funding Information: We acknowledge the DOE BES (DE-FG02-00-ER45841) grant for measurements, and the NSF (Grants DMR-1305691 and MRSEC DMR-1420541), the Gordon and Betty Moore Foundation (Grant GBMF4420), and Keck Foundation for sample fabrication and characterization. A portion of this work was performed at the NHMFL, which is supported by the NSF Cooperative Agreement No. DMR-1157490, the State of Florida, and the DOE. We thank S. Hannahs, G. E. Jones, T. P. Murphy, E. Palm, A. Suslov, and J. H. Park for technical assistance. We are indebted to R. Winkler for illuminating discussions and providing the self-consistently calculated charge distribution. Funding Information: We acknowledge the DOE BES (DE-FG02-00-ER45841) grant for measurements, and the NSF (Grants DMR-1305691 and MRSEC DMR-1420541), the Gordon and Betty Moore Foundation (Grant GBMF4420), and Keck Foundation for sample fabrication and characterization. A portion of this work was performed at the NHMFL, which is supported by the NSF Cooperative Agreement No. DMR-1157490, the State of Florida, and the DOE. We thank S. Hannahs, G. E. Jones, T. P. Murphy, E. Palm, A. Suslov, and J. H. Park for technical assistance. We are indebted to R. Winkler for illuminating discussions and providing the self-consistently calculated charge distribution. Publisher Copyright: {\textcopyright} 2015 American Physical Society.",
year = "2015",
month = nov,
day = "30",
doi = "10.1103/PhysRevB.92.195156",
language = "English (US)",
volume = "92",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "19",
}