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Low-temperature physics

Low-temperature physics

Wigner crystal appears in bilayer graphene

02 May 2024 Isabelle Dumé
Scanning tunnelling microscopy image of the Wigner crystal, which appears as a grid of triangular shapes containing blue-coloured circles in their interiors and red around the edges. Each blue circular region contains a single localized electron.
An image of a triangular Wigner crystal taken by scanning tunnelling microscopy. Each site (blue circular region) contains a single localized electron. (Courtesy: Yen-Chen Tsui and team, Princeton University)
Researchers at Princeton University in the US say they have made the first direct observation of a W

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Isabelle Dumé is a contributing editor to Physics World
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