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Evidence for a Bilayer Quantum Wigner Solid

H. C. Manoharan·Y. W. Suen·M. B. Santos·M. Shayegan
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Abstract

As the electronic charge distribution in a wide quantum well is tuned from a single-layer through an interacting bilayer configuration to weakly-coupled parallel layers, we observe an insulating phase concurrently manifesting a dramatic evolution. The data reveal that interlayer interactions, playing a crucial role, are able to stabilize a {\it correlated bilayer} electron insulator, thus providing tantalizing evidence of a pinned bilayer Wigner solid phase crystallizing at total filling factor $ν$ as large as 0.54 ($ν> \frac14$ in each layer).

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H. C. Manoharan, Y. W. Suen, M. B. Santos, M. Shayegan. 1996-03-02. Evidence for a Bilayer Quantum Wigner Solid. https://doi.org/10.1103/physrevlett.77.1813

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