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

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

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-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 R_xx(R_yy) and a non-quantized Hall resistance R_H. Here, we report on emergent minima (maxima) in R_xx(R_yy) and plateau-like features in R_Hin 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 language	English (US)
Journal	Unknown Journal
State	Published - Feb 10 2020

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@article{8b98c3e9ffd849c9ae4cb3f3b01e8942,

title = "Anomalous nematic states in high half-filled landau levels",

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.",

author = "X. Fu and Q. Shi and Zudov, {M. A.} and Gardner, {G. C.} and Watson, {J. D.} and Manfra, {M. J.} and Baldwin, {K. W.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "2020",

month = feb,

day = "10",

language = "English (US)",

journal = "Journal of Fluid Mechanics",

issn = "0022-1120",

publisher = "Cambridge University Press",

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TY - JOUR

T1 - Anomalous nematic states in high half-filled landau levels

AU - Fu, X.

AU - Shi, Q.

AU - Zudov, M. A.

AU - Gardner, G. C.

AU - Watson, J. D.

AU - Manfra, M. J.

AU - Baldwin, K. W.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2020/2/10

Y1 - 2020/2/10

N2 - 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.

AB - 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.

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JF - Journal of Fluid Mechanics

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