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  1. Article

    Open Access

    Anomalous excitonic phase diagram in band-gap-tuned Ta2Ni(Se,S)5

    During a band-gap-tuned semimetal-to-semiconductor transition, Coulomb attraction between electrons and holes can cause spontaneously formed excitons near the zero-band-gap point, or the Lifshitz transition po...

    Cheng Chen, Weichen Tang, **ang Chen, Zhibo Kang, Shuhan Ding… in Nature Communications (2023)

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