@article{ae0994aaccb4452c94a578a8543a1625,
title = "Wigner solid pinning modes tuned by fractional quantum Hall states of a nearby layer",
abstract = " We studied a bilayer system hosting two-dimensional electron systems (2DESs) in close proximity but isolated from one another by a thin barrier. One 2DES has low electron density and forms a Wigner solid (WS) at high magnetic fields. The other has much higher density and, in the same field, exhibits fractional quantum Hall states (FQHSs). The WS spectrum has resonances which are understood as pinning modes, oscillations of the WS within the residual disorder. We found the pinning mode frequencies of the WS are strongly affected by the FQHSs in the nearby layer. Analysis of the spectra indicates that the majority layer screens like a dielectric medium even when its Landau filling is ~ 1 / 2 , at which the layer is essentially a composite fermion (CF) metal. Although the majority layer is only ~ one WS lattice constant away, a WS site only induces an image charge of ~0.1e in the CF metal.",
author = "Hatke, {A. T.} and H. Deng and Yang Liu and Engel, {L. W.} and Pfeiffer, {L. N.} and West, {K. W.} and Baldwin, {K. W.} and M. Shayegan",
note = "Funding Information: We thank J.-H. Park and G. Jones for their expert technical assistance and J. P. Eisenstein for discussions. The microwave spectroscopy work at the National High Magnetic Field Laboratory (NHMFL) was supported through Department of Energy Basic Energy Sciences (DOE-BES) grant DE-FG02-05-ER46212 at NHMFL/FSU. The NHMFL is supported by National Science Foundation (NSF) Cooperative Agreement nos. DMR-1157490 and DMR-1644779, by the State of Florida, and by the DOE. The work at Princeton University was funded by the Gordon and Betty Moore Foundation through the EPiQS initiative grant GBMF4420 and by the DOE-BES grant DE-FG02-00-ER45841, the NSF grant DMR-1709076, and the MRSEC grant DMR-1420541. Publisher Copyright: Copyright {\textcopyright} 2019 The Authors, some rights reserved.",
year = "2019",
doi = "10.1126/sciadv.aao2848",
language = "English (US)",
volume = "5",
journal = "Science advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "3",
}