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Graphene optoelectronics

A fool's errand

Transferring electrons from the ground state to an excited state by optical pumping usually increases the population of the upper state. But for graphene in an external magnetic field, the pumped state actually gets depleted.

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Figure 1: Auger processes in graphene.

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Correspondence to Isabella Gierz.

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Gierz, I. A fool's errand. Nature Phys 11, 12–13 (2015). https://doi.org/10.1038/nphys3206

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