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 non-quantized Hall resistance RH. Here, we report on emergent minima (maxima) in Rxx(Ryy) and plateau-like features in RHin half-filled N ≥ 3 Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggesting a new ground state.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Feb 10 2020

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