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Excitons

Molecules in flatland

Forming molecules from atoms is commonplace in dense atomic gases. But it now seems that some two-dimensional materials provide a suitable environment for creating complex molecular states from the hydrogen-like electron–hole pairs that form in semiconductors.

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Figure 1: Biexcitons in monolayer transition metal dichalcogenides.

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Correspondence to Wang Yao.

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Yao, W. Molecules in flatland. Nature Phys 11, 448–449 (2015). https://doi.org/10.1038/nphys3350

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