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 ( $N\ge 2$) 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 nonquantized Hall resistance $R_H$. In this letter, we report on emergent minima (maxima) in $R_{xx}$ ( $R_{yy}$) and plateaulike features in $R_H$ in half-filled $N\ge 3$ Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggestive of a new ground state.

Authors:

Fu, X. ^[1]; Shi, Q. ^[1]; Zudov, M.  A. ^[1]; Gardner, G.  C. ^[2]; Watson, J.  D. ^[2]; Manfra, M.  J. ^[2]; Baldwin, K.  W. ^[3]; Pfeiffer, L.  N.  ^[3];

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West, K.  W. ^[3]

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+ Show Author Affiliations

1. Univ. of Minnesota, Minneapolis, MN (United States)
2. Purdue Univ., West Lafayette, IN (United States)
3. Princeton Univ., NJ (United States)

Publication Date:

Fri Feb 14 00:00:00 EST 2020

Research Org.:

Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES); Gordon and Betty Moore Foundation; National Science Foundation (NSF); State of Florida

OSTI Identifier:

1656815

Alternate Identifier(s):

OSTI ID: 1599670

Grant/Contract Number:  

SC0002567; SC0020138; GBMF 4420; DMR-1420541

Resource Type:

Accepted Manuscript

Journal Name:

Physical Review Letters

Additional Journal Information:

Journal Volume: 124; Journal Issue: 6; Journal ID: ISSN 0031-9007

Publisher:

American Physical Society (APS)

Country of Publication:

United States

Language:

English

Subject:

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY