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

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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 languageEnglish
Article number126803
JournalPhysical Review Letters
Issue number12
Publication statusPublished - 2010 Sep 17


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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