@article{541aa367648445f4a2b6c826e918ae91,
title = "Geometric Resonance of Composite Fermions near Bilayer Quantum Hall States",
abstract = "Via the application of a parallel magnetic field, we induce a single-layer to bilayer transition in two-dimensional electron systems confined to wide GaAs quantum wells and study the geometric resonance of composite fermions (CFS) with a periodic density modulation in our samples. The measurements reveal that CFS exist close to bilayer quantum Hall states, formed at Landau level filling factors ν=1 and 1/2. Near ν=1, the geometric resonance features are consistent with half the total electron density in the bilayer system, implying that CFS prefer to stay in separate layers and exhibit a two-component behavior. In contrast, close to ν=1/2, CFS appear single-layer-like (single component) as their resonance features correspond to the total density.",
author = "Mueed, {M. A.} and D. Kamburov and Pfeiffer, {L. N.} and West, {K. W.} and Baldwin, {K. W.} and M. Shayegan",
note = "Funding Information: We acknowledge support through the NSF (Grants No.DMR-1305691 and No.ECCS-1508925) for measurements. We also acknowledge the NSF (Grant No.MRSEC DMR-1420541), the DOE BES (Grant No.DE-FG02-00-ER45841), the Gordon and Betty Moore Foundation (Grant No.GBMF4420), and the Keck Foundation for sample fabrication and characterization. Our measurements were partly performed at the National High Magnetic Field Laboratory (NHMFL), which is supported by the NSF Cooperative Agreement No.DMR-1157490, by the State of Florida, and by the DOE. We thank S. Hannahs, T. Murphy, A. Suslov, J. Park, and G. Jones at NHMFL for technical support. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = dec,
day = "6",
doi = "10.1103/PhysRevLett.117.246801",
language = "English (US)",
volume = "117",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "24",
}