Evidence for a Bilayer Quantum Wigner Solid

Details Evidence for a Bilayer Quantum Wigner Solid Evidence for a Bilayer Quantum Wigner Solid

1996-03-02

arxiv.org/abs/cond-mat/9603008v1

Phys. Rev. Lett., vol. 77, p. 1813 (1996)

Physics

Condensed Matter

10 pages, REVTeX, submitted to Phys. Rev. Lett.; 4 figures (1 color) and text available for viewing (HTML) or download (Postsc

Scientific paper

10.1103/PhysRevLett.77.1813

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 $\nu$ as large as 0.54 ($\nu > \frac14$ in each layer).

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