Heat transport measurements on twisted bilayer graphene reveal a strong asymmetry between electrons and holes — a consequence of band reconstruction, induced by electronic interactions, at partial fillings of the moiré superlattice.
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Stepanov, P. Thermopower probes electronic flat bands. Nat. Phys. 18, 617–618 (2022). https://doi.org/10.1038/s41567-022-01595-y
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DOI: https://doi.org/10.1038/s41567-022-01595-y
