Van der waals heterostructures

Exciting double bilayers

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An excitonic Bose–Einstein condensate has so far been realized only in particular semiconductor heterostructure setups. Now, experiments show that such condensates can form in double graphene bilayers separated by hexagonal boron nitride.

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Figure 1: Schematic illustration of the bilayer quantum Hall effect.
Figure 2: Experimental signatures of exciton BEC in the bilayer quantum Hall system.

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Correspondence to Koji Muraki.

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Muraki, K. Exciting double bilayers. Nature Phys 13, 726–728 (2017) doi:10.1038/nphys4163

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