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arXiv · 1006.2335

Observation of pinning mode in Wigner solid of 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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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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Han Zhu, Yong P. Chen, P. Jiang, L. W. Engel, D. C. Tsui, L. N. Pfeiffer, K. W. West. 2010-08-20. Observation of pinning mode in Wigner solid of 1/3 fractional quantum Hall excitations. https://doi.org/10.1103/physrevlett.105.126803

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