Observation of a pinning mode in a wigner solid with μ=1/3 fractional quantum hall excitations

Han Zhu; Yong P. Chen; P. Jiang; L. W. Engel; D. C. Tsui; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevLett.105.126803

Observation of a pinning mode in a wigner solid with μ=1/3 fractional quantum hall excitations

Han Zhu, Yong P. Chen, P. Jiang, L. W. Engel, D. C. Tsui, L. N. Pfeiffer, K. W. West

Electrical and Computer Engineering

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Abstract

We report the observation of a resonance in the microwave spectra of the real diagonal conductivities of a two-dimensional electron system within a range of ∼±0.015 from filling factor ν=1/3. The resonance is remarkably similar to resonances previously observed near integer ν, and is interpreted as the collective pinning mode of a disorder-pinned Wigner solid phase of e/3-charged carriers.

Original language	English (US)
Article number	126803
Journal	Physical review letters
Volume	105
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.105.126803
State	Published - Sep 17 2010

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.105.126803

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abstract = "We report the observation of a resonance in the microwave spectra of the real diagonal conductivities of a two-dimensional electron system within a range of ∼±0.015 from filling factor ν=1/3. The resonance is remarkably similar to resonances previously observed near integer ν, and is interpreted as the collective pinning mode of a disorder-pinned Wigner solid phase of e/3-charged carriers.",

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AU - Engel, L. W.

AU - Tsui, D. C.

AU - Pfeiffer, L. N.

AU - West, K. W.

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N2 - We report the observation of a resonance in the microwave spectra of the real diagonal conductivities of a two-dimensional electron system within a range of ∼±0.015 from filling factor ν=1/3. The resonance is remarkably similar to resonances previously observed near integer ν, and is interpreted as the collective pinning mode of a disorder-pinned Wigner solid phase of e/3-charged carriers.

AB - We report the observation of a resonance in the microwave spectra of the real diagonal conductivities of a two-dimensional electron system within a range of ∼±0.015 from filling factor ν=1/3. The resonance is remarkably similar to resonances previously observed near integer ν, and is interpreted as the collective pinning mode of a disorder-pinned Wigner solid phase of e/3-charged carriers.

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Observation of a pinning mode in a wigner solid with μ=1/3 fractional quantum hall excitations

Abstract

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