Niels B. M. Schröter (@nbmschroeter.bsky.social)

What happens when electron correlations and dimerization compete? In Nb₃Br₈, this interplay drives a band-to-Mott-insulator transition. We reveal the first momentum-resolved fingerprint of Mottness—showing which side of the transition you're on. www.nature.com/articles/s41...

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Momentum-resolved fingerprint of Mottness in layer-dimerized Nb3Br8 - Nature Communications Distinguishing band and Mott insulators experimentally represents a longstanding challenge. Here, the authors demonstrate a momentum-resolved signature of a dimerized Mott-insulator in the out-of-plan... https://www.nature.com/articles/s41467-025-58885-1