Direct observation of Wigner molecular crystals. (IMAGE)

Science China Press

Direct observation of Wigner molecular crystals.

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(a) Triangular charge order formed by electrons self-organizing in a moiré potential well under Coulomb repulsion at filling factor ν_MX = 3. (b) Modulating the dielectric screening strength by varying the STM tip height induces an expansion of the Wigner molecular lattice from a dense packing to a distinct Kagome structure.

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