@article{0f37790d586944498d0ae5cb93e2ad48,
title = "Critical filling factor for the formation of a quantum Wigner crystal screened by a nearby layer",
abstract = "One of the most fascinating ground states of an interacting electron system is the so-called Wigner crystal where the electrons, in order to minimize their repulsive Coulomb energy, form an ordered array. Here, we report measurements of the critical filling factor (νC) below which a magnetic-field-induced, quantum Wigner crystal forms in a dilute, two-dimensional electron layer when a second, high-density electron layer is present in close proximity. The data reveal that the Wigner crystal forms at a significantly smaller νC compared to the νC (≃0.20) in single-layer two-dimensional electron systems. The measured νC exhibits a strong dependence on the interlayer distance, reflecting the interaction and screening from the adjacent, high-density layer.",
author = "H. Deng and Engel, {L. W.} and Pfeiffer, {L. N.} and West, {K. W.} and Baldwin, {K. W.} and M. Shayegan",
note = "Funding Information: We thank R. N. Bhatt and J. K. Jain for helpful discussions. We acknowledge the National Science Foundation (Grant No. DMR 1709076) for measurements and the Gordon and Betty Moore Foundation (Grant No. GBMF4420), the Department of Energy Basic Energy Sciences (Grant No. DE-FG02-00-ER45841), and the National Science Foundation (Grants No. MRSEC DMR 1420541 and No. ECCS 1508925) for sample fabrication. L.W.E. is supported by the Department of Energy (Grant No. DE-FG02-05-ER46212). Funding Information: We thank R. N. Bhatt and J. K. Jain for helpful discussions. We acknowledge the National Science Foundation (Grant No. DMR 1709076) for measurements and the Gordon and Betty Moore Foundation (Grant No. GBMF4420), the Department of Energy Basic Energy Sciences (Grant No. DE-FG02-00-ER45841), and the National Science Foundation (Grants No. MRSEC DMR 1420541 and No. ECCS 1508925) for sample fabrication. L.W.E. is supported by the Department of Energy (Grant No. DE-FG02-05-ER46212). Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = aug,
day = "16",
doi = "10.1103/PhysRevB.98.081111",
language = "English (US)",
volume = "98",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "8",
}