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arXiv · 1511.05376

Wigner crystal in a two-dimensional electron system in the vicinity of filling factor 1/5: Acoustic studies

I. L. Drichko·I. Yu. Smirnov·A. V. Suslov·L. N. Pfeiffer·K. W. West·Y. M. Galperin
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Abstract

By simultaneous measurements of the attenuation and velocity of surface acoustic waves propagating in proximity to a high-quality GaAs quantum well we study the complex AC conductance of the two-dimensional electron system. Focusing on the vicinity of the filling factor $ν=1/5$ we confirm that the insulating states formed closely to this value of $ν$ are pinned Wigner crystals.

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I. L. Drichko, I. Yu. Smirnov, A. V. Suslov, L. N. Pfeiffer, K. W. West, Y. M. Galperin. 2015-11-17. Wigner crystal in a two-dimensional electron system in the vicinity of filling factor 1/5: Acoustic studies. https://doi.org/10.1016/j.ssc.2015.04.018

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