On 10 July, Science published the Report “Proton transport enabled by a field-induced metallic state in a semiconductor heterostructure” by Y. Wu et al. (1). After publication, we received emails from two independent sources alleging that figures S9B and S10 in this paper appeared to be manipulated copies of figures previously published by the same corresponding author, Bin Zhu, in two papers (2, 3) that reported different fuel cell compositions. The allegations were subsequently posted to PubPeer (4). While we await clarification from investigations by the authors' institutions, we are notifying readers of our concern about the paper's data integrity.
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