Anomalous Nematic States in High Half-Filled Landau Levels

X. Fu, Q. Shi, M. A. Zudov, G. C. Gardner, J. D. Watson, M. J. Manfra, K. W. Baldwin, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

Abstract

It is well established that the ground states of a two-dimensional electron gas with half-filled high (N≥2) Landau levels are compressible charge-ordered states, known as quantum Hall stripe (QHS) phases. The generic features of QHSs are a maximum (minimum) in a longitudinal resistance Rxx (Ryy) and a nonquantized Hall resistance RH. Here, we report on emergent minima (maxima) in Rxx (Ryy) and plateaulike features in RH in half-filled N≥3 Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggestive of a new ground state.

Original languageEnglish (US)
Article number067601
JournalPhysical review letters
Volume124
Issue number6
DOIs
StatePublished - Feb 14 2020

Bibliographical note

Funding Information:
We thank M. Shayegan for discussions and G. Jones, S. Hannas, T. Murphy, J. Park, A. Suslov, and A. Bangura for technical support. The work at Minnesota (Purdue) was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0002567 (DE-SC0020138). L. N. P. and K. W. W. of Princeton University acknowledge the Gordon and Betty Moore Foundation Grant No. GBMF 4420, and the National Science Foundation MRSEC Grant No. DMR-1420541. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreements No. DMR-1157490, No. DMR-1644779, and the State of Florida.

Funding Information:
We thank M. Shayegan for discussions and G. Jones, S. Hannas, T. Murphy, J. Park, A. Suslov, and A. Bangura for technical support. The work at Minnesota (Purdue) was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No.DE-SC0002567 (DE-SC0020138). L.N.P. and K.W.W. of Princeton University acknowledge the Gordon and Betty Moore Foundation Grant No.GBMF 4420, and the National Science Foundation MRSEC Grant No.DMR-1420541. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreements No.DMR-1157490, No.DMR-1644779, and the State of Florida.

Publisher Copyright:
© 2020 American Physical Society.

PubMed: MeSH publication types

  • Journal Article

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