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Cited by 277

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Anomalous sound propagation at ν=1/2 in a 2D electron gas: Observation of a spontaneously broken translational symmetry?

Willett, R. L., Paalanen, M. A., Ruel, R. R., West, K. W., Pfeiffer, L. N., Bishop, D. J.·1990·Physical Review Letters

Abstract

Surface-acoustic-wave propagation on high-quality AlGaAs/GaAs heterostructures containing a two-dimensional electron system has been examined in the fractional quantum Hall effect (FQHE) regime. The response of the electron system to the sound wave is found to be similar in the FQHE states to that previously studied in the integral quantum Hall states. However, a striking disparity is observed at Landau-level filling \ensuremath{\nu}=1/2, where sound propagation is distinctly different from that in the neighboring filling-factor range. We propose that phase separation of the 2DEG may be responsible for the feature at \ensuremath{\nu}=1/2.

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Metadata

Authors
Willett, R. L., Paalanen, M. A., Ruel, R. R., West, K. W., Pfeiffer, L. N., & Bishop, D. J.
Venue
Physical Review Letters
Published
1990-07-02
Volume
65
Issue
1
Pages
112-115
ISSN
0031-9007 (ISSN-L)
OpenAlex
W1964785391
Cited by
277
References
9
FWCI
8.40
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Anomalous sound propagation at ν=1/2 in a 2D electron gas: Observation of a spontaneously broken translational symmetry? https://app.cochat.ai/papers/10.1103/physrevlett.65.112
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Willett, R. L., Paalanen, M. A., Ruel, R. R., West, K. W., Pfeiffer, L. N., & Bishop, D. J. (1990). Anomalous sound propagation at ν=1/2 in a 2D electron gas: Observation of a spontaneously broken translational symmetry? Physical Review Letters. https://doi.org/10.1103/physrevlett.65.112

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