Video of a Wigner crystal (VIDEO)
Caption
The video describes melting processes of an electron Wigner crystal into electron liquid phases. As the electron density (\nu, a measure of number of electrons in a magnetic field, is controlled by applying electric voltages) is increased, more electrons (dark blue sites) enter the field of view, and a periodic structure of a triangular lattice emerges. The periodic structure is first melted (near \nu = 0.334) where the map shows homogeneous signals. And then it reappears at higher density \nu, and eventually melts again (\nu = 0.414).
Credit
Yen-Chen Tsui, Princeton University
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Use with credit: Yen-Chen Tsui, Princeton University
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